二年级_科学单元三 :人类的遗传
Joyce Ang
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Published On Apr 6, 2020
小朋友们好!我们常常会听到大人们常说这样的一句话:“你和你妈妈长得很像!” 你们有没有想过为什么大人们会说“长得很像”? 那到底代表了什么?“遗传”是什么?“遗传”和“长得像”有没有关系?
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