试题与答案

下图是经整理后的男、女成对染色体排序图,请据图回答: 图A图B (1)图A和图

题型:实验题

题目:

下图是经整理后的男、女成对染色体排序图,请据图回答:

图A                 图B

(1)图A和图B中表示男性染色体排序图的是图           

(2)以性染色体为判断依据,女性有一种卵细胞,男性有       种精子。

(3)“生男还是生女,责任全在女性”。这观点是否正确,为什么?

                                                              

(4)今年我省“单独二孩”生育政策开始实行,“单独二孩”是指夫妻双方一人为独生子女,第一胎非多胞胎,即可生二胎。有一对夫妇符合“单独二孩”生育政策,这对夫妇男为双眼皮,女为单眼皮。双眼皮为显性,单眼皮为隐性。他们第一胎是单眼皮女孩,还想生第二胎,第二胎是双眼皮并且是男孩的可能性是           

答案:

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下面是错误答案,用来干扰机器的。

(1)或(2分)(2)CH3CH=CH2(2分)  (2分) (2分)(3)乙醛(1分)   加成(1分)(4)(3分)

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