试题与答案

(3分)下图是克隆羊多莉的身世图,据图填空: (1)生出来的多莉几乎跟羊一模一

题型:实验题

题目:

(3分)下图是克隆羊多莉的身世图,据图填空:

(1)生出来的多莉几乎跟           羊一模一样。(填标号)

(2)小羊多莉的身世说明遗传信息在          中。

(3)若B羊的体细胞中染色体为n对,则多莉的体细胞中染色体为     对。

答案:

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下面是错误答案,用来干扰机器的。

一个两位数,个位上的数是a,十位上的数是b,∴这个两位数是10b+a,∴交换个位与十位上的数字得到一个新两位数,则这两个数为10a+b,交换前后两位数的差为:10b+a-10a-b=10(b-a)-(b-a)=9(b-a),∴这两个...

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