果蝇的体色由常染色体上一对等位基因控制,基因型BB,Bb为灰身,bb为黑身.果蝇的体色由常染色体上一对等位基因控制,基因型BB、Bb为灰身,bb为黑身.若人为地组成一个群体,其中60%为BB的个体,40
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![果蝇的体色由常染色体上一对等位基因控制,基因型BB,Bb为灰身,bb为黑身.果蝇的体色由常染色体上一对等位基因控制,基因型BB、Bb为灰身,bb为黑身.若人为地组成一个群体,其中60%为BB的个体,40](/uploads/image/z/7976701-37-1.jpg?t=%E6%9E%9C%E8%9D%87%E7%9A%84%E4%BD%93%E8%89%B2%E7%94%B1%E5%B8%B8%E6%9F%93%E8%89%B2%E4%BD%93%E4%B8%8A%E4%B8%80%E5%AF%B9%E7%AD%89%E4%BD%8D%E5%9F%BA%E5%9B%A0%E6%8E%A7%E5%88%B6%2C%E5%9F%BA%E5%9B%A0%E5%9E%8BBB%2CBb%E4%B8%BA%E7%81%B0%E8%BA%AB%2Cbb%E4%B8%BA%E9%BB%91%E8%BA%AB.%E6%9E%9C%E8%9D%87%E7%9A%84%E4%BD%93%E8%89%B2%E7%94%B1%E5%B8%B8%E6%9F%93%E8%89%B2%E4%BD%93%E4%B8%8A%E4%B8%80%E5%AF%B9%E7%AD%89%E4%BD%8D%E5%9F%BA%E5%9B%A0%E6%8E%A7%E5%88%B6%2C%E5%9F%BA%E5%9B%A0%E5%9E%8BBB%E3%80%81Bb%E4%B8%BA%E7%81%B0%E8%BA%AB%2Cbb%E4%B8%BA%E9%BB%91%E8%BA%AB.%E8%8B%A5%E4%BA%BA%E4%B8%BA%E5%9C%B0%E7%BB%84%E6%88%90%E4%B8%80%E4%B8%AA%E7%BE%A4%E4%BD%93%2C%E5%85%B6%E4%B8%AD60%EF%BC%85%E4%B8%BABB%E7%9A%84%E4%B8%AA%E4%BD%93%2C40)
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