高中生物必修二第四章

高中生物必修二第四章 第四章 1(组成DNA和RNA的核苷酸种类有( D ) A(2种 B(4种 C(5种 D(8种 2(下列说法中，正确的是( C ) A(DNA和RNA是同一物质在不同时期的两种形态 B(一个DNA包括两个RNA C(一般DNA是两条链，RNA是单链 D(DNA和RNA的基本组成单位是一样的 3(转运RNA的功能是( D ) A(决定信使RNA的碱基排列顺序 B(完全取代DNA C(合成特定的氨基酸 D(运输氨基酸，识别信使RNA的遗传密码 4(真核生物染色体DNA遗传信息的传递与达过程，在细胞质中进行的是( C ) A(复制 B(转录 C(翻译 D(转录和翻译 5(有关真核细胞DNA复制和转录这两种过程的叙述，错误的是( C ) (( A(两种过程都可在细胞核中发生 B(两种过程都有酶参与反应 C(两种过程都以脱氧核糖核苷酸为原料 D(两种过程都以DNA为 6(一条多肽链中有氨基酸1 000个，作为合成该多肽链模板的mRNA分子和用来转录成mRNA的DNA分子分别至少需要碱基( D ) A(3 000个和3 000个 B(1 000个和2 000个 C(2 000个和4 000个 D(3 000个和 6 000个 7(已知某物种的细胞中含有26个DNA分子，其中有2个DNA分子各含有24 000个碱基，由这两个DNA分子所控制合成的肽链中，最多含有多少种氨基酸( D ) A(8 000 B(4 000 C(16 000 D(20 8(有关蛋白质合成的叙述，不正确的是( C ) ( A(终止密码子不编码氨基酸 B(每种tRNA只运转一种氨基酸 C(tRNA的反密码子携带了氨基酸序列的遗传信息 D(核糖体可在mRNA上移动 9(下列关于遗传信息的说法中，不确切的是( D ) ( A(基因的脱氧核苷酸排列顺序就代表遗传信息 B(遗传信息的传递主要是通过染色体上 while the lawn is still in a great stage of life activities, compared with the previous two periods, lawn water requirements increase at this stage, if not timely irrigation, not only affect the growth of grass, also causes yellow. At this stage, according to 4-5 of irrigation. In short, grass types, water requirements are different, you mustAccording to the climate conditions and plant species to determine irrigation of the lawn. About a day, when irrigation is better depends on irrigation. In theory, the same period as long as the amount of irrigation water is less than the infiltration capacity of the soil, irrigation all the time in a day. Then depends on the irrigation way. If intermittent intermittent spray or spray irrigation (high degree of atomization), irrigation is best with the Sun. Not only can add moisture, but also significantly improve the microclimate and photosynthesis and transpiration and gas exchange, facilitated the coordination of water, air, fertilizer and soil thermal and vegetative organs of root and root expansion, and could lead the entire transit storage of the plant material, breathing, lawns and lush. If using water, irrigation, and so on, should be watching season, early spring, late autumn around the heel as well and the rest take twilight as much. (2) irrigation irrigation quantity should be based on the soil, growing, grass and other factors to determine. General lawn growing season drought period, takes about a week to pay 20-40mm; vigorously growing lawn in the heat and severe drought situations, need to pay 50-60mm per week or more. In General, regardless of the method, should be irrigated more than once, each time less water, maximum surface runoff that just occurred. 2, fertilizing to maintain lawn dark green leaves, grows, portions must be fertilized. Lawn plants for leaf growth and blossom-free requirements, so nitrogen is more important, response to nitrogen fertilizer is the most obvious. Should be basic application 的基因传递的 C(生物体内的遗传信息主要储存在DNA分子上 D(遗传信息即生物体所表现出来的遗传性状 10(基因控制生物体性状的方式是( D ) A(通过控制酶的合成来控制代谢过程，进而控制生物体性状 B(通过控制蛋白质的结构直接控制生物体的性状 C(基因通过控制激素的合成控制生物体的性状 D(包括A和B两种方式 11(下列关于遗传信息传递的叙述，错误的是( D ) (( A(线粒体和叶绿体中遗传信息的传递遵循中心法则 B(DNA中的遗传信息是通过转录传递给mRNA的 C(DNA中的遗传信息可决定蛋白质中氨基酸的排列顺序 D(DNA病毒中没有RNA，其遗传信息的传递不遵循中心法则 12.萝卜的花有红色的、紫色的、白色的，由一对等位基因控制。以下是三种不同类型杂交的结 果: 紫色×红色?398紫色，395红色; 紫色×白色?200紫色，205白色; 紫色×紫色?98红色，190紫色，94白色。 下列相关叙述，错误的是 ( C ) A(红色与红色杂交，后代均为红色 B(白色与白色杂交，后代均为白色 C(红色与白色杂交，后代既有红色，也有白色 D(可用紫色与白色杂交验证基因的分离 定律 13(下图为某细胞的分裂图像，据图分析合理的是 ( C ) while the lawn is still in a great stage of life activities, compared with the previous two periods, lawn water requirements increase at this stage, if not timely irrigation, not only affect the growth of grass, also causes yellow. At this stage, according to 4-5 of irrigation. In short, grass types, water requirements are different, you mustAccording to the climate conditions and plant species to determine irrigation of the lawn. About a day, when irrigation is better depends on irrigation. In theory, the same period as long as the amount of irrigation water is less than the infiltration capacity of the soil, irrigation all the time in a day. Then depends on the irrigation way. If intermittent intermittent spray or spray irrigation (high degree of atomization), irrigation is best with the Sun. Not only can add moisture, but also significantly improve the microclimate and photosynthesis and transpiration and gas exchange, facilitated the coordination of water, air, fertilizer and soil thermal and vegetative organs of root and root expansion, and could lead the entire transit storage of the plant material, breathing, lawns and lush. If using water, irrigation, and so on, should be watching season, early spring, late autumn around the heel as well and the rest take twilight as much. (2) irrigation irrigation quantity should be based on the soil, growing, grass and other factors to determine. General lawn growing season drought period, takes about a week to pay 20-40mm; vigorously growing lawn in the heat and severe drought situations, need to pay 50-60mm per week or more. In General, regardless of the method, should be irrigated more than once, each time less water, maximum surface runoff that just occurred. 2, fertilizing to maintain lawn dark green leaves, grows, portions must be fertilized. Lawn plants for leaf growth and blossom-free requirements, so nitrogen is more important, response to nitrogen fertilizer is the most obvious. Should be basic application A(若1号染色体上含有基因W，则2号染色体上含有基因w的可能性很大 B(该细胞有四对同源染色体 C(若该细胞为某生物的体细胞，则该生物高度不育 D(该细胞完成分裂后，细胞中的染色体、DNA、线粒体被平均分配到子细胞中 14(对于下列图解，说法不正确的是 ( D ) DNA „—A—T—G—C—C—C—„ RNA „—U—A—C—G—G—G—„ A.在DNA分子的一条单链中相邻的碱基A与T的连接是通过“脱氧核糖—磷酸—脱氧 核糖” B.一个DNA分子可以转录成多种、多个信使RNA C.该图中的产物须穿过0层生物膜与细胞质中的核糖体结合，完成遗传信息的表达 D.H5N1禽流感病毒在培养基上也可以完成该过程 15(对下列各图所表示的生物学意义的描述，正确的是 ( B ) A(甲图中生物自交后产生基因型为Aadd个体的概率为1/6 B(乙图细胞若处于有丝分裂后期，则该生物正常体细胞的染色体数为4条 C(丙图家系中男性患者明显多于女性患者，该病最有可能是伴X隐性遗传病 WWD(丁图表示某果蝇染色体组成，其配子基因型有AX、aX两种 16(下列有关染色体、DNA、基因、脱氧核苷酸的说法，不正确的是 ( A ) A(在DNA分子结构中，与脱氧核糖直接相连的一般是一个磷酸基和一个碱基 B(基因是具有遗传效应的DNA片段，一个DNA分子上可含有成百上千个基因 C(一个基因含有许多个脱氧核苷酸，基因的特异性是由脱氧核苷酸的排列顺序决定的 D(染色体是DNA的主要载体，一条染色体上含有1个或2个DNA分子 17(如图代表人体胰岛细胞中发生的某一过程(AA代表氨基酸)，下列叙述正确的是( D ) while the lawn is still in a great stage of life activities, compared with the previous two periods, lawn water requirements increase at this stage, if not timely irrigation, not only affect the growth of grass, also causes yellow. At this stage, according to 4-5 of irrigation. In short, grass types, water requirements are different, you mustAccording to the climate conditions and plant species to determine irrigation of the lawn. About a day, when irrigation is better depends on irrigation. In theory, the same period as long as the amount of irrigation water is less than the infiltration capacity of the soil, irrigation all the time in a day. Then depends on the irrigation way. If intermittent intermittent spray or spray irrigation (high degree of atomization), irrigation is best with the Sun. Not only can add moisture, but also significantly improve the microclimate and photosynthesis and transpiration and gas exchange, facilitated the coordination of water, air, fertilizer and soil thermal and vegetative organs of root and root expansion, and could lead the entire transit storage of the plant material, breathing, lawns and lush. If using water, irrigation, and so on, should be watching season, early spring, late autumn around the heel as well and the rest take twilight as much. (2) irrigation irrigation quantity should be based on the soil, growing, grass and other factors to determine. General lawn growing season drought period, takes about a week to pay 20-40mm; vigorously growing lawn in the heat and severe drought situations, need to pay 50-60mm per week or more. In General, regardless of the method, should be irrigated more than once, each time less water, maximum surface runoff that just occurred. 2, fertilizing to maintain lawn dark green leaves, grows, portions must be fertilized. Lawn plants for leaf growth and blossom-free requirements, so nitrogen is more important, response to nitrogen fertilizer is the most obvious. Should be basic application A(能给该过程提供遗传信息的只能是DNA B(该过程合成的产物一定是酶或激素 C(有多少个密码子，就有多少个反密码子与之对应 D(该过程有水产生 18(将某多肽(分子式为CHON)彻底水解后，得到下列4种氨基酸(R基均不含氮元素):谷55701910 氨酸(CHNO)，苯丙氨酸(CHNO)，甘氨酸(CHNO)，丙氨酸(CHNO)。问基因在控制合成5949112252372 该多肽的过程中所需核苷酸有多少种( A ) A(4 B(8 C(30 D(60 19(下面是几个同学对有关蛋白质和核酸之间关系的，你认为其中错误的是( C ) A(在同一生物体内，不同的体细胞核中DNA分子是相同的，但蛋白质和RNA是不同的 B(基因中的遗传信息通过mRNA传递到蛋白质，遗传信息通过蛋白质中的氨基酸的排列顺 序得到表达 C(在蛋白质合成旺盛的细胞中，DNA分子多，转录成的mRNA分子也多，从而翻译成的蛋 白质就多，如胰腺细胞与口腔上皮细胞相比较就是如此 D(真核细胞中，DNA的复制和转录主要在细胞核中完成，而蛋白质的合成均在细胞质内完 成 20(信使RNA上决定氨基酸的某个密码子的一个碱基发生替换，则识别该密码子的tRNA及转运 的氨基酸发生的变化是 ( C ) A(tRNA一定改变，氨基酸一定改变 B(tRNA不一定改变，氨基酸不一定改变 C(tRNA一定改变，氨基酸不一定改变 D(tRNA不一定改变，氨基酸一定改变 21(果蝇的基因A,a控制体色，B,b控制翅型，两对基因分别位于不同常染色体上，且基因A 具有纯合致死效应。已知黑身残翅果蝇与灰身长翅果蝇交配，F为黑身长翅和灰身长翅，1 比例为1?1。当F的黑身长翅果蝇彼此交配时，其后代表现型及比例为黑身长翅?黑身残1 翅?灰身长翅?灰身残翅,6?2?3?1。下列分析错误的是 ( B ) A(果蝇这两对相对性状中，显性性状分别为黑身和长翅 while the lawn is still in a great stage of life activities, compared with the previous two periods, lawn water requirements increase at this stage, if not timely irrigation, not only affect the growth of grass, also causes yellow. At this stage, according to 4-5 of irrigation. In short, grass types, water requirements are different, you mustAccording to the climate conditions and plant species to determine irrigation of the lawn. About a day, when irrigation is better depends on irrigation. In theory, the same period as long as the amount of irrigation water is less than the infiltration capacity of the soil, irrigation all the time in a day. Then depends on the irrigation way. If intermittent intermittent spray or spray irrigation (high degree of atomization), irrigation is best with the Sun. Not only can add moisture, but also significantly improve the microclimate and photosynthesis and transpiration and gas exchange, facilitated the coordination of water, air, fertilizer and soil thermal and vegetative organs of root and root expansion, and could lead the entire transit storage of the plant material, breathing, lawns and lush. If using water, irrigation, and so on, should be watching season, early spring, late autumn around the heel as well and the rest take twilight as much. (2) irrigation irrigation quantity should be based on the soil, growing, grass and other factors to determine. General lawn growing season drought period, takes about a week to pay 20-40mm; vigorously growing lawn in the heat and severe drought situations, need to pay 50-60mm per week or more. In General, regardless of the method, should be irrigated more than once, each time less water, maximum surface runoff that just occurred. 2, fertilizing to maintain lawn dark green leaves, grows, portions must be fertilized. Lawn plants for leaf growth and blossom-free requirements, so nitrogen is more important, response to nitrogen fertilizer is the most obvious. Should be basic application B(F的黑身长翅果蝇彼此交配产生的后代中致死个体占的比例为1/3 1 C(F的黑身长翅果蝇彼此交配产生的后代中致死基因型有三种 1 D(F中的黑身残翅果蝇个体测交后代表现型比例为1?1 2 22(DNA复制和转录的共同点是 ( A ) A.都需要解旋酶破坏氢键 B.在细胞核内进行 C.碱基互补配对原则完全相同 D.不需要ATP 提供能量 23(tRNA与mRNA碱基互补配对现象可出现在真核细胞的( B ) A(细胞核中 B(核糖体上 C(核膜上 D(核孔处 24(下图为真核生物细胞核内转录过程的示意图，下列说法正确的是 ( B ) A.?链的碱基A与?链的碱基T互补配对 B.?是以4种核糖核苷酸为原料合成的 C.如果?表示酶分子，则它的名称是DNA聚合酶 D.转录完成后，?需通过三层生物膜才能与核糖体结合 25(观察细胞内某生理过程示意图(图中甲表示甲硫氨酸，丙表示丙氨酸)，分析下列细胞中不 ) 能发生图示生理过程的是 ( C A.根毛细胞 B.浆细胞 C.人体成熟的红细胞 D.大肠杆菌细胞 26(下列关于中心法则的叙述中，错误的是( D ) 选项 模板 原 料 产物 过 程 A DNA 脱氧核苷酸 DNA DNA复制 B DNA 核糖核苷酸 RNA 转录 C RNA 核糖核苷酸 RNA RNA复制 D RNA 核糖核苷酸 DNA 逆转录 27(如图是生物mRNA合成过程图，请根据图判断下列说法正确的是 ( B ) A(R所示的节段?正处于解旋状态，与之有关的酶是解旋酶、DNA聚合酶 while the lawn is still in a great stage of life activities, compared with the previous two periods, lawn water requirements increase at this stage, if not timely irrigation, not only affect the growth of grass, also causes yellow. At this stage, according to 4-5 of irrigation. In short, grass types, water requirements are different, you mustAccording to the climate conditions and plant species to determine irrigation of the lawn. About a day, when irrigation is better depends on irrigation. In theory, the same period as long as the amount of irrigation water is less than the infiltration capacity of the soil, irrigation all the time in a day. Then depends on the irrigation way. If intermittent intermittent spray or spray irrigation (high degree of atomization), irrigation is best with the Sun. Not only can add moisture, but also significantly improve the microclimate and photosynthesis and transpiration and gas exchange, facilitated the coordination of water, air, fertilizer and soil thermal and vegetative organs of root and root expansion, and could lead the entire transit storage of the plant material, breathing, lawns and lush. If using water, irrigation, and so on, should be watching season, early spring, late autumn around the heel as well and the rest take twilight as much. (2) irrigation irrigation quantity should be based on the soil, growing, grass and other factors to determine. General lawn growing season drought period, takes about a week to pay 20-40mm; vigorously growing lawn in the heat and severe drought situations, need to pay 50-60mm per week or more. In General, regardless of the method, should be irrigated more than once, each time less water, maximum surface runoff that just occurred. 2, fertilizing to maintain lawn dark green leaves, grows, portions must be fertilized. Lawn plants for leaf growth and blossom-free requirements, so nitrogen is more important, response to nitrogen fertilizer is the most obvious. Should be basic application B(图中?上一定有密码子 C(合成?过程中涉及到碱基互补配对原则，A与T 、T与A、G与C、C与G D(图中遗传信息的流动方向: D ) 28(下列关于转录和翻译的比较中错误的是( A.需要的原料不同 B(所需酶的种类不同 C.均可以在线粒体和叶绿体中进行 D.碱基配 对的方式相同 3229(用P标记的噬菌体侵染大肠杆菌，经培养、搅拌、离心、检测，上清液的放射性占15%， 沉淀物的放射性占85%。上清液带有放射性的原因可能是 ( C ) A(离心时间过长，上清液中析出较重的大肠杆菌 B(搅拌不充分，吸附在大肠杆菌上的噬菌体未与细菌分离 C(噬菌体侵染大肠杆菌后，大肠杆菌裂解释放出子代噬菌体 32D(P标记了噬菌体蛋白质外壳，离心后存在于上清液中 30(下列生理过程的组合中，所用原料相同的是 ( C ) ?DNA分子的复制 ?RNA的复制 ?转录 ?逆转录 ?翻译 A(?与?、?与? B(?与?、?与? C(?与?、?与? D(?与?、?与? 31(组成mRNA分子的4种单核苷酸可形成多少种密码子( D ) A(16种 B(32种 C(46种 D(64种 32(中心法则是指( D ) A(基因控制蛋白质合成的过程 B(遗传信息的转录和翻译的过程 C(碱基互补配对的过程 D(遗传信息的传递过程 33(中心法则包括( D ) A(复制 B(转录及逆转录 C(翻译 D(A、B、C三项 34(同一株水毛茛，浸在水中的叶与裸露在空气中的叶形态不同，原因是( C ) A(基因发生了改变 B(环境决定生物的性状 while the lawn is still in a great stage of life activities, compared with the previous two periods, lawn water requirements increase at this stage, if not timely irrigation, not only affect the growth of grass, also causes yellow. At this stage, according to 4-5 of irrigation. In short, grass types, water requirements are different, you mustAccording to the climate conditions and plant species to determine irrigation of the lawn. About a day, when irrigation is better depends on irrigation. In theory, the same period as long as the amount of irrigation water is less than the infiltration capacity of the soil, irrigation all the time in a day. Then depends on the irrigation way. If intermittent intermittent spray or spray irrigation (high degree of atomization), irrigation is best with the Sun. Not only can add moisture, but also significantly improve the microclimate and photosynthesis and transpiration and gas exchange, facilitated the coordination of water, air, fertilizer and soil thermal and vegetative organs of root and root expansion, and could lead the entire transit storage of the plant material, breathing, lawns and lush. If using water, irrigation, and so on, should be watching season, early spring, late autumn around the heel as well and the rest take twilight as much. (2) irrigation irrigation quantity should be based on the soil, growing, grass and other factors to determine. General lawn growing season drought period, takes about a week to pay 20-40mm; vigorously growing lawn in the heat and severe drought situations, need to pay 50-60mm per week or more. In General, regardless of the method, should be irrigated more than once, each time less water, maximum surface runoff that just occurred. 2, fertilizing to maintain lawn dark green leaves, grows, portions must be fertilized. Lawn plants for leaf growth and blossom-free requirements, so nitrogen is more important, response to nitrogen fertilizer is the most obvious. Should be basic application C(基因未发生改变，性状还受环境的影响 D(水中叶片脱落了 35(DNA分子的解旋发生在( A ) A(复制和转录过程中 B(翻译过程中 C(复制和翻译过程中 D(逆转录过程中 36(碱基互补配对不发生在( A ) A(细胞膜上 B(线粒体内 C(叶绿体内 D(核糖体上 37(如图是真核生物信使RNA合成过程图，请根据图判断下列说法中正确的是( A ) A(R所示的阶段正处于解旋状态，形成这种状态需要解旋酶 B(图中?是以4种脱氧核苷酸为原料合成的 C(如果图中?表示酶分子，则它的名称是DNA聚合酶 D(图中的?合成后，直接进入细胞质中，在核糖体上合成具有特定空间结构和功能的蛋白质分子 38(在蛋白质合成过程中，少量的mRNA分子就可以迅速指导合成出大量的蛋白质。其主要原因是( D ) A(一种氨基酸可能由多种密码子来决定 B(一种氨基酸可以由多种转运RNA携带到核糖体中 C(一个核糖体可同时与多条mRNA结合，同时进行多条肽链的合成 D(一个mRNA分子上可相继结合多个核糖体，同时进行多条肽链的合成 39(果蝇的长翅和残翅是由一对等位基因V和v控制的，果蝇的正常发育是在20?C,25?C条件下完成。将果蝇培养在20?C以上的条件下，残翅果蝇的后代(F1)会出现长翅性状，此现象可while the lawn is still in a great stage of life activities, compared with the previous two periods, lawn water requirements increase at this stage, if not timely irrigation, not only affect the growth of grass, also causes yellow. At this stage, according to 4-5 of irrigation. In short, grass types, water requirements are different, you mustAccording to the climate conditions and plant species to determine irrigation of the lawn. About a day, when irrigation is better depends on irrigation. In theory, the same period as long as the amount of irrigation water is less than the infiltration capacity of the soil, irrigation all the time in a day. Then depends on the irrigation way. If intermittent intermittent spray or spray irrigation (high degree of atomization), irrigation is best with the Sun. Not only can add moisture, but also significantly improve the microclimate and photosynthesis and transpiration and gas exchange, facilitated the coordination of water, air, fertilizer and soil thermal and vegetative organs of root and root expansion, and could lead the entire transit storage of the plant material, breathing, lawns and lush. If using water, irrigation, and so on, should be watching season, early spring, late autumn around the heel as well and the rest take twilight as much. (2) irrigation irrigation quantity should be based on the soil, growing, grass and other factors to determine. General lawn growing season drought period, takes about a week to pay 20-40mm; vigorously growing lawn in the heat and severe drought situations, need to pay 50-60mm per week or more. In General, regardless of the method, should be irrigated more than once, each time less water, maximum surface runoff that just occurred. 2, fertilizing to maintain lawn dark green leaves, grows, portions must be fertilized. Lawn plants for leaf growth and blossom-free requirements, so nitrogen is more important, response to nitrogen fertilizer is the most obvious. Should be basic application 以解释为( D ) A(环境因素可以引起基因突变 B(环境因素可以引起基因重组 C(环境因素可以引起染色体变异 D(表现型是基因型与环境因素共同作用的结果 40(用链霉素和新霉素可使核糖体与单链的DNA结合，这一单链DNA就可代替mRNA翻译成多肽，说明( C ) A(遗传信息可由RNA流向DNA B(遗传信息可由蛋白质流向DNA C(遗传信息可由DNA直接流向蛋白质 D(遗传信息可由RNA流向蛋白质 41(已知一段双链DNA分子中，鸟嘌呤所占比例为20%，由该DNA转录出来的RNA，其胞嘧啶的比例是( D ) A(10% B(20% C(40% D(无法确定 42(若一段信使RNA有60个碱基，其中A15个，G25个，那么转录该信使RNA的DNA片段中共有A和G多少个( D ) A(15 B(25 C(40 D(60 43(把兔子血红蛋白的信使RNA加入到大肠杆菌的提取液中，结果能合成出兔子的血红蛋白，这说明( A ) A(所有的生物共用一套遗传密码 B(蛋白质的合成过程很简单 C(兔血红蛋白的合成基因进入大肠杆菌 D(兔子的DNA可以指导大肠杆菌的蛋白质合成 44(细胞中的核糖体通常不是单独执行功能，而是构成多聚核糖体(如图)。研究表明，动物卵裂期细胞中多聚核糖体的百分比明显增高，下列有关叙述中不正确的是( C ) while the lawn is still in a great stage of life activities, compared with the previous two periods, lawn water requirements increase at this stage, if not timely irrigation, not only affect the growth of grass, also causes yellow. At this stage, according to 4-5 of irrigation. In short, grass types, water requirements are different, you mustAccording to the climate conditions and plant species to determine irrigation of the lawn. About a day, when irrigation is better depends on irrigation. In theory, the same period as long as the amount of irrigation water is less than the infiltration capacity of the soil, irrigation all the time in a day. Then depends on the irrigation way. If intermittent intermittent spray or spray irrigation (high degree of atomization), irrigation is best with the Sun. Not only can add moisture, but also significantly improve the microclimate and photosynthesis and transpiration and gas exchange, facilitated the coordination of water, air, fertilizer and soil thermal and vegetative organs of root and root expansion, and could lead the entire transit storage of the plant material, breathing, lawns and lush. If using water, irrigation, and so on, should be watching season, early spring, late autumn around the heel as well and the rest take twilight as much. (2) irrigation irrigation quantity should be based on the soil, growing, grass and other factors to determine. General lawn growing season drought period, takes about a week to pay 20-40mm; vigorously growing lawn in the heat and severe drought situations, need to pay 50-60mm per week or more. In General, regardless of the method, should be irrigated more than once, each time less water, maximum surface runoff that just occurred. 2, fertilizing to maintain lawn dark green leaves, grows, portions must be fertilized. Lawn plants for leaf growth and blossom-free requirements, so nitrogen is more important, response to nitrogen fertilizer is the most obvious. Should be basic application A(核糖体的主要功能是合成蛋白质 B(卵裂期细胞分裂旺盛，需要大量蛋白质 C(多聚核糖体的形成可以大大缩短每条肽链的合成时间 D(多聚核糖体中的核糖体数目与信使RNA的长度有关 45(在小麦的根尖细胞内，基因分布在( B ) A(染色体、核糖体 B(染色体、线粒体 C(染色体、叶绿体 D(染色体、线粒体、叶绿体 46(下列转录的简式中，一共有几种核苷酸( C ) 5 A(4 B( C(6 D(8 47(关于转运RNA和氨基酸之间相互关系的说法，正确的是( D ) A(每种氨基酸都可由几种转运RNA携带 B(每种氨基酸都有它特定的一种转运RNA C(一种转运RNA可以携带几种结构上相似的氨基酸 D(一种氨基酸可由一种或几种特定的转运RNA来将它带到核糖体上 48(猴、噬菌体、烟草花叶病毒中参与构成核酸的碱基种类数依次是( B ) A(4、4、5 B(5、4、4 C(8、4、4 D(4、4、4 49(如果细胞甲比细胞乙RNA的含量多，可能的原因有( A ) A(甲合成的蛋白质比乙多 B(乙合成的蛋白质比甲多 C(甲含的染色体比乙多 D(甲含的DNA比乙多 50(如图所示，下列有关的叙述中，不正确的是( C ) while the lawn is still in a great stage of life activities, compared with the previous two periods, lawn water requirements increase at this stage, if not timely irrigation, not only affect the growth of grass, also causes yellow. At this stage, according to 4-5 of irrigation. In short, grass types, water requirements are different, you mustAccording to the climate conditions and plant species to determine irrigation of the lawn. About a day, when irrigation is better depends on irrigation. In theory, the same period as long as the amount of irrigation water is less than the infiltration capacity of the soil, irrigation all the time in a day. Then depends on the irrigation way. If intermittent intermittent spray or spray irrigation (high degree of atomization), irrigation is best with the Sun. Not only can add moisture, but also significantly improve the microclimate and photosynthesis and transpiration and gas exchange, facilitated the coordination of water, air, fertilizer and soil thermal and vegetative organs of root and root expansion, and could lead the entire transit storage of the plant material, breathing, lawns and lush. If using water, irrigation, and so on, should be watching season, early spring, late autumn around the heel as well and the rest take twilight as much. (2) irrigation irrigation quantity should be based on the soil, growing, grass and other factors to determine. General lawn growing season drought period, takes about a week to pay 20-40mm; vigorously growing lawn in the heat and severe drought situations, need to pay 50-60mm per week or more. In General, regardless of the method, should be irrigated more than once, each time less water, maximum surface runoff that just occurred. 2, fertilizing to maintain lawn dark green leaves, grows, portions must be fertilized. Lawn plants for leaf growth and blossom-free requirements, so nitrogen is more important, response to nitrogen fertilizer is the most obvious. Should be basic application A(甲是DNA，乙为RNA，此过程要以甲为模板，酶为RNA聚合酶 B(甲是DNA，乙为DNA，此过程要以甲为模板，酶为DNA聚合酶 C(甲是RNA，乙为DNA，此过程为转录，原料为脱氧核苷酸 D(甲是RNA，乙为蛋白质，此过程为翻译，原料为氨基酸 51((2011?安徽高考，5)甲、乙图示真核细胞内两种物质的合成过程，下列叙述正确的是(D ) A(甲、乙所示过程通过半保留方式进行，合成的产物是双链核酸分子 B(甲所示过程在细胞核内进行，乙在细胞质基质中进行 while the lawn is still in a great stage of life activities, compared with the previous two periods, lawn water requirements increase at this stage, if not timely irrigation, not only affect the growth of grass, also causes yellow. At this stage, according to 4-5 of irrigation. In short, grass types, water requirements are different, you mustAccording to the climate conditions and plant species to determine irrigation of the lawn. About a day, when irrigation is better depends on irrigation. In theory, the same period as long as the amount of irrigation water is less than the infiltration capacity of the soil, irrigation all the time in a day. Then depends on the irrigation way. If intermittent intermittent spray or spray irrigation (high degree of atomization), irrigation is best with the Sun. Not only can add moisture, but also significantly improve the microclimate and photosynthesis and transpiration and gas exchange, facilitated the coordination of water, air, fertilizer and soil thermal and vegetative organs of root and root expansion, and could lead the entire transit storage of the plant material, breathing, lawns and lush. If using water, irrigation, and so on, should be watching season, early spring, late autumn around the heel as well and the rest take twilight as much. (2) irrigation irrigation quantity should be based on the soil, growing, grass and other factors to determine. General lawn growing season drought period, takes about a week to pay 20-40mm; vigorously growing lawn in the heat and severe drought situations, need to pay 50-60mm per week or more. In General, regardless of the method, should be irrigated more than once, each time less water, maximum surface runoff that just occurred. 2, fertilizing to maintain lawn dark green leaves, grows, portions must be fertilized. Lawn plants for leaf growth and blossom-free requirements, so nitrogen is more important, response to nitrogen fertilizer is the most obvious. Should be basic application C(DNA分子解旋时，甲所示过程不需要解旋酶，乙需要解旋酶 D(一个细胞周期中，甲所示过程在每个起点只起始一次，乙可起始多次 52(艾滋病病毒属于RNA病毒，具有逆转录酶，如果它决定某性状的一段RNA含碱基A为19%、C为26%、G为32%，则通过逆转录过程形成的双链DNA中碱基A占( B ) A(19% B(21% C(23% D(42% 53(信使RNA上决定氨基酸的某个密码子的一个碱基发生替换，则识别该密码子的tRNA及转运的氨基酸发生的变化是( C ) A(tRNA一定改变，氨基酸一定改变 B(tRNA不一定改变，氨基酸不一定改变 C(tRNA一定改变，氨基酸不一定改变 D(tRNA不一定改变，氨基酸一定改变 54(将大肠杆菌在含15N的培养液中培养后，再转移到含14N的普通培养液中培养，8小时后提取DNA进行分析，得出含15N的DNA分子所占比例为1/16，则大肠杆菌的分裂周期是( C ) A(2小时 B(4小时 C(1.6小时 D(1小时 55(下图是某大肠杆菌细胞内DNA分子复制的过程，图中????表示不同的脱氧核苷酸链。下列叙述正确的是( B ) A(该过程所需要的能量是由线粒体提供的 B(该过程所需要的解旋酶是在核糖体上合成的 C(若?某位点上的碱基为A，则?相应位点上的碱基为T D(若?的一个碱基发生了替换，则一定会引起生物性状的改变 56(下列关于细胞质基因的存在位置的说法正确的是( B ) while the lawn is still in a great stage of life activities, compared with the previous two periods, lawn water requirements increase at this stage, if not timely irrigation, not only affect the growth of grass, also causes yellow. At this stage, according to 4-5 of irrigation. In short, grass types, water requirements are different, you mustAccording to the climate conditions and plant species to determine irrigation of the lawn. About a day, when irrigation is better depends on irrigation. In theory, the same period as long as the amount of irrigation water is less than the infiltration capacity of the soil, irrigation all the time in a day. Then depends on the irrigation way. If intermittent intermittent spray or spray irrigation (high degree of atomization), irrigation is best with the Sun. Not only can add moisture, but also significantly improve the microclimate and photosynthesis and transpiration and gas exchange, facilitated the coordination of water, air, fertilizer and soil thermal and vegetative organs of root and root expansion, and could lead the entire transit storage of the plant material, breathing, lawns and lush. If using water, irrigation, and so on, should be watching season, early spring, late autumn around the heel as well and the rest take twilight as much. (2) irrigation irrigation quantity should be based on the soil, growing, grass and other factors to determine. General lawn growing season drought period, takes about a week to pay 20-40mm; vigorously growing lawn in the heat and severe drought situations, need to pay 50-60mm per week or more. In General, regardless of the method, should be irrigated more than once, each time less water, maximum surface runoff that just occurred. 2, fertilizing to maintain lawn dark green leaves, grows, portions must be fertilized. Lawn plants for leaf growth and blossom-free requirements, so nitrogen is more important, response to nitrogen fertilizer is the most obvious. Should be basic application A(存在于细胞质中某些细胞器的染色体上 B(存在于细胞质中某些细胞器内的DNA上 C(存在于细胞质和细胞核内 D(存在于染色体上 57(在同一草场，牛吃了草长成牛，羊吃了草长成羊，这是由于牛和羊的( D ) A(染色体数目不同 B(消化能力不同 C(蛋白质结构不同 D(不同DNA控制合成不同蛋白质 58(有关蛋白质合成的叙述中，正确的是( D ) A(一个氨基酸只对应一种密码子 B(每一种氨基酸对应一种tRNA C(都在内质网上的核糖体中合成 D(氨基酸由mRNA密码子决定 59(下列有关图示的生理过程(图中?代表核糖体，?代表多肽链)的叙述中，正确的是( B ) A(遗传信息由?传递到?时，氨基酸与?遵循碱基互补配对原则 B(真核细胞中遗传信息由?传递到?在细胞核中进行，由?传递到?在细胞质中进行 C(?中有三个相邻碱基代表密码子 D(图中?在该过程中不起作用，因此?是内含子 60(构成蛋白质的氨基酸种类约有20种，则决定氨基酸的密码子和组成密码子的碱基种类分别约有( D ) A(20种和20种 B(64种和20种 C(64种和4种 D(61种和4种 while the lawn is still in a great stage of life activities, compared with the previous two periods, lawn water requirements increase at this stage, if not timely irrigation, not only affect the growth of grass, also causes yellow. At this stage, according to 4-5 of irrigation. In short, grass types, water requirements are different, you mustAccording to the climate conditions and plant species to determine irrigation of the lawn. About a day, when irrigation is better depends on irrigation. In theory, the same period as long as the amount of irrigation water is less than the infiltration capacity of the soil, irrigation all the time in a day. Then depends on the irrigation way. If intermittent intermittent spray or spray irrigation (high degree of atomization), irrigation is best with the Sun. Not only can add moisture, but also significantly improve the microclimate and photosynthesis and transpiration and gas exchange, facilitated the coordination of water, air, fertilizer and soil thermal and vegetative organs of root and root expansion, and could lead the entire transit storage of the plant material, breathing, lawns and lush. If using water, irrigation, and so on, should be watching season, early spring, late autumn around the heel as well and the rest take twilight as much. (2) irrigation irrigation quantity should be based on the soil, growing, grass and other factors to determine. General lawn growing season drought period, takes about a week to pay 20-40mm; vigorously growing lawn in the heat and severe drought situations, need to pay 50-60mm per week or more. In General, regardless of the method, should be irrigated more than once, each time less water, maximum surface runoff that just occurred. 2, fertilizing to maintain lawn dark green leaves, grows, portions must be fertilized. Lawn plants for leaf growth and blossom-free requirements, so nitrogen is more important, response to nitrogen fertilizer is the most obvious. Should be basic application 1-5 DCDCC 6-10 DDCDD 11-15 DCCDB 16-20 ADACC 21-25 BABBC 26-30 DBDCC 31-35 DDDCA 36-40 AADDC 41-45 DDACB 46-50 CDBAC 51-55 DBCCB 56-60 BDDBD while the lawn is still in a great stage of life activities, compared with the previous two periods, lawn water requirements increase at this stage, if not timely irrigation, not only affect the growth of grass, also causes yellow. At this stage, according to 4-5 of irrigation. In short, grass types, water requirements are different, you mustAccording to the climate conditions and plant species to determine irrigation of the lawn. About a day, when irrigation is better depends on irrigation. In theory, the same period as long as the amount of irrigation water is less than the infiltration capacity of the soil, irrigation all the time in a day. Then depends on the irrigation way. If intermittent intermittent spray or spray irrigation (high degree of atomization), irrigation is best with the Sun. Not only can add moisture, but also significantly improve the microclimate and photosynthesis and transpiration and gas exchange, facilitated the coordination of water, air, fertilizer and soil thermal and vegetative organs of root and root expansion, and could lead the entire transit storage of the plant material, breathing, lawns and lush. If using water, irrigation, and so on, should be watching season, early spring, late autumn around the heel as well and the rest take twilight as much. (2) irrigation irrigation quantity should be based on the soil, growing, grass and other factors to determine. General lawn growing season drought period, takes about a week to pay 20-40mm; vigorously growing lawn in the heat and severe drought situations, need to pay 50-60mm per week or more. In General, regardless of the method, should be irrigated more than once, each time less water, maximum surface runoff that just occurred. 2, fertilizing to maintain lawn dark green leaves, grows, portions must be fertilized. Lawn plants for leaf growth and blossom-free requirements, so nitrogen is more important, response to nitrogen fertilizer is the most obvious. Should be basic application