[生物—选修3：现代生物科技专题](15分)甲、乙是染色体数目相同的两种二倍体药用植

发布时间：2017-07-13 03:38 │ 来源：www.tikuol.com

题型：问答题

问题：

[生物—选修3：现代生物科技专题](15分)甲、乙是染色体数目相同的两种二倍体药用植物，甲含有效成分A，乙含有效成分B。某研究小组拟培育同时含有A和B的新型药用植物。回答下列问题：

上述杂种植株属于多倍体，多倍体是指_______。假设甲和乙有性杂交的后代是不育的，而上述杂种植株是可育的，造成这种差异的原因是__________。

考点：普通高考理科综合高考理综真题（新课标Ⅱ卷）2013年

题型：问答题

完形填空。

Dear Dr. Bamford,
     I know you are a famous scientist who has done great work on cloning (克隆) animals. Please excuse me
for writing to you, but I need your  1 . Let me explain.
     I am a 58-year-old man. I'm very rich. I live in a large house. My wife died three years ago; we didn't have
children.
     So, am I  2 ? No, because Cindy is with me. Every night we eat dinner together and watch TV. Cindy sits
beside me  3 I feel very happy. I'm fascinated (着迷的) with her beautiful green eyes. She's also very smart.
Sometimes she thinks only about herself. But that's what I  4  about her. She is quite a beautiful Siamese cat.
There is no other cat like her in the whole world.
     These days I worry about  5 Cindy. She is getting older and older. Cats don't live  6  humans, of course,
so she will die before I do. I cannot imagine my life  7  Cindy.
     Well, why not get another cat after Cindy dies?  8 ! No other cat can even replace (替代) her.
      I have been thinking about this: Clone Cindy. Scientists are able to clone sheep and mice and other animals.
They should be able to clone cats without much  9 . Luckily, I am a rich man. I don't care how much money I
will spend cloning Cindy. I think  10  to clone pets. It's not cloning humans.
     What do you think? Could you clone Cindy?
                                                                                                                                             Sincerely
                                                                                                                                           A rich man

( )1. A. cat
( )2. A. lucky
( )3. A. but
( )4. A. like
( )5. A. feeding
( )6. A. as hard as
( )7. A. with
( )8. A. Certainly
( )9. A. difficulty
( )10. A. it's terrible

B. animals
B. lonely
B. or
B. hate
B. catching
B. as soon as
B. without
B. Impossible
B. advice
B. you aren't supposed

C. help
C. healthy
C. for
C. mind
C. losing
C. so often as
C. of
C. Really
C. hope
C. it's OK

D. money
D. happy
D. and
D. stand
D. training
D. so long as
D. about
D. Wonderful
D chance
D. you aren't allowed

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题型：问答题

- What do you want to be when you grow up?

-I want to be_______ social worker. Many people are in great need of our help.

A．a

B．an

C．the

D．不填

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题型：问答题

终身寿险的现金价值是终身保险的重要性质，以下说法正确的是（）。

A.终身寿险无需预先累积未来死亡费用，它的现金价值应等于保额

B.终身寿险预提金额的多少与保费的缴付方式和期限无关

C.所有终身寿险保单都必须拥有现金价值，而且所积累的现金价值应等于保额

D.终身寿险的保单所有人必须通过退保才能获得资金

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题型：问答题

政府质量监督机构在工程开工前的质量检查工作有()。

A.检查项目参与各方的质保体系

B.审查施工组织设计文件

C.检查工程建设各方的合同文件

D.审查监理规划文件

E.检查相关人员的资格证书

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题型：问答题

延长移植物存活最有效的方法是

A．进行ABO血型配型
B．进行HLA配型
C．进行混合淋细胞培养
D．应用环孢菌素A
E．应用FK-506

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