2020-2021学年高一生物浙科版（2019）必修二随堂检测（13）染色体畸变可能引起性状改
※题型：单选题※知识点：单选题※试题难度：中等<br>在某些外界条件作用下,图a中某对同源染色体发生了变异(如图b),则该种变异属于( )<imgA.基因突变 B.染色体数目变异<br>C.缺失 D.重复<br>答案<br><img src="https://picture2.zhihuicn.com/answer/1/9/2020/2d2b3c1b80c940de9e971dc58d7ba04d/F3FFF02E67737AECAA5F9376DCA7D618.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/1/9/2020/feb2821b21af4c44ab00ce788aa78e95/5D91DEE6D3A04427218E99505DF47286.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>两条染色体经过某种变异后的结果示意图如下,该图表示的变异为( )<imgA.缺失 B.重复<br>C.易位 D.同源染色体非姐妹染色单体的片断互换<br>答案<br><img src="https://picture2.zhihuicn.com/answer/1/9/2020/4a1e3a1251e0478a8edd7630b5e427d9/F3FFF02E67737AECAA5F9376DCA7D618.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/1/9/2020/65367d12e6e04ccf9326328e94a62afd/214987DA3ACC121557FA4A03246A24D3.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>下列哪一项不是染色体结构变异( )<br>A.染色体片段颠倒 B.染色体片段移接<br>C.染色体片段的缺失或增加 D.染色体数目增加<br>答案<br><img src="https://picture2.zhihuicn.com/answer/1/9/2020/854a46db5e2b4be592f6a8c762f93805/2BB966A0E0D0EF1A330D14E3ADEDA5C5.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/1/9/2020/b71cdca3a5644d46930295647c86c633/BE76A1CC05B8107D739858D488549ACB.png"><br><br>※题型：单选题※知识点：单选题※试题难度：较易<br>“猫叫综合征”因患病儿童哭声轻,音调高,很像猫叫而得名。其病因是( )<br>A.第5号染色体部分缺失 B.第5号染色体部分重复<br>C.第5号染色体部分易位 D.第5号染色体部分倒位<br>答案<br><img src="https://picture2.zhihuicn.com/answer/1/9/2019/8ed71570e13545359e2f10704e83ac2c/E7F0EDF83F40244C8F0C84B97471AED6.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/1/9/2019/bc24f49f30d64908b3d92c563a4355be/D9E854BA1D84B4EAD9B735569C2C2FA4.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>含两个染色体组的配子直接发育成的个体应该叫( )<br>A.单倍体 B.配子体 C.多倍体 D.二倍体<br>答案<br><img src="https://picture2.zhihuicn.com/answer/1/9/2020/739f6b317c8943d29b02518ef6e7a3da/C6DD893B0461FAD877175A7ECBBD5939.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/1/9/2020/79f718d69e5b433699f0ea92b0d676bf/B1A80AA69FC9A442581DEEF46184764A.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>若某二倍体生物正常体细胞的染色体数目为8条,则下列能表示其含有一个染色体组的细胞的是( )<br>A.<img src="https://picture2.zhihuicn.com/testImage/1/2020/5/6/B3B8C9754320E13CEFA0795A8500F3DB.png"><br>B.<img src="https://picture2.zhihuicn.com/testImage/1/2020/5/6/DA812502437CF04FA6EACB543F6A3853.png"><br>C.<img src="https://picture2.zhihuicn.com/testImage/1/2020/5/6/65D8270A71F65198CAF45EA40AD41EE1.png"><br>D.<img src="https://picture2.zhihuicn.com/testImage/1/2020/5/6/9E76954A1C171E9E90D661D57372C526.png"><br><br>答案<br><img src="https://picture2.zhihuicn.com/answer/1/9/2020/fba94aa7452749659c5accb922c84a7a/C6DD893B0461FAD877175A7ECBBD5939.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/1/9/2020/ebaa0c6a73e04ffb888e69eb3b500170/1924AE83880FED4DD1737AC05086F1D5.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>单倍体育种可以明显地缩短育种年限,其原因是( )<br>A.单倍体杂交后代不发生性状分离<br>B.单倍体经染色体加倍后自交后代不发生性状分离<br>C.单倍体高度不育,不发生性状分离<br>D.单倍体育种免去了费时的杂交程序<br>答案<br><img src="https://picture2.zhihuicn.com/answer/1/9/2020/f560a78135864372b5fb344be8a88076/76900E09FAB5EBA344B8EA84E844FF07.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/1/9/2020/e5e63b33d6e043b7b88eb4719f1778c2/250DA9610CB69FB948153694776B41B9.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>下列情况中不属于染色体变异的是( )<br>A.第5号染色体短臂缺失引起的遗传病<br>B.第21号染色体多一条引起的21三体综合征<br>C.同源染色体非姐妹染色单体之间交换了对应部分的结构<br>D.用花药培养出了单倍体植株<br>答案<br><img src="https://picture2.zhihuicn.com/answer/1/9/2015/68cd1a65412b40afb511ec8ddaef0bbd/F3FFF02E67737AECAA5F9376DCA7D618.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/1/9/2015/ff1eea611c8a43b3bf34fd6277dbe0b8/F1424C08D6FDAF79E2EC0E7A64F5C48B.png"><br><br>※题型：单选题※知识点：单选题※试题难度：较易<br>下列关于单倍体育种的说法,正确的是( )<br>A.在单倍体育种过程中,染色体加倍后的植株自交一定不会发生性状分离<br>B.单倍体育种过程中获得的植株,其体内细胞的染色体数目一定都相同<br>C.单倍体育种必须使用秋水仙素<br>D.单倍体育种过程中用到了植物组织培养技术<br>答案<br><img src="https://picture2.zhihuicn.com/answer/1/9/2019/49404f06ef434565b9eddd597f59d268/01A39E48B8A67989A23F6887F26FCC64.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/1/9/2019/439f3375e2e14fc7a7ee408d125ffcc8/56F9109C4C2316A16EABF67A1835A1B3.png"><br><br>
页:
[1]