[题目]假说一演绎法是现代科学研究中常用的方法.包括“提出问题.作出假设.演绎推理.实验验证.得出结论等基本环节.利用该方法.孟德尔发现了遗传规律.下列关于孟德尔研究过程的分析正确的是( )A．孟德尔所作假设的核心内容是“生物体能产生数量相等的雌雄配子 B．为了验证做出的假设是否正确.孟德尔设计并完成了正.反交实验C．题目和参考答案——青夏教育精英家教网—

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【题目】假说一演绎法是现代科学研究中常用的方法，包括“提出问题、作出假设、演绎推理、实验验证、得出结论”等基本环节。利用该方法，孟德尔发现了遗传规律。下列关于孟德尔研究过程的分析正确的是（）

A．孟德尔所作假设的核心内容是“生物体能产生数量相等的雌雄配子”

B．为了验证做出的假设是否正确，孟德尔设计并完成了正、反交实验

C．孟德尔发现的遗传规律可以解释所有有性生殖生物的遗传现象

D．孟德尔做出的“演绎”是杂合子与隐性亲本杂交，其后代性状比为1∶1

【答案】D

【解析】孟德尔所作假设的内容是“性状是由遗传因子决定的；体细胞中遗传因子是成对存在的；生物体在形成配子时，成对的遗传因子分离；受精时雌雄配子随机结合。”，其中核心内容是“性状是遗传因子控制的”，A错误；为了验证做出的假设是否正确，孟德尔设计并完成了测交实验，B错误；孟德尔遗传定律只能解释真核生物的一些遗传现象，C错误；孟德尔做出的“演绎”是杂合子与隐性亲本杂交，其后代的性状比为1∶1，D正确．

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体裁	话题
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【题目】完形填空

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