一道SAT生物题 麻烦翻译 并且解答一下 谢谢A cattle breeder wanted a line of “pure breeding” roan cattle. Would it be possible to have such a line? Why or why not?
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![一道SAT生物题 麻烦翻译 并且解答一下 谢谢A cattle breeder wanted a line of “pure breeding” roan cattle. Would it be possible to have such a line? Why or why not?](/uploads/image/z/14527874-2-4.jpg?t=%E4%B8%80%E9%81%93SAT%E7%94%9F%E7%89%A9%E9%A2%98+%E9%BA%BB%E7%83%A6%E7%BF%BB%E8%AF%91+%E5%B9%B6%E4%B8%94%E8%A7%A3%E7%AD%94%E4%B8%80%E4%B8%8B+%E8%B0%A2%E8%B0%A2A+cattle+breeder+wanted+a+line+of+%E2%80%9Cpure+breeding%E2%80%9D+roan+cattle.+Would+it+be+possible++to+have+such+a+line%3F++Why+or+why+not%3F)
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一道SAT生物题 麻烦翻译 并且解答一下 谢谢A cattle breeder wanted a line of “pure breeding” roan cattle. Would it be possible to have such a line? Why or why not?
一道SAT生物题 麻烦翻译 并且解答一下 谢谢
A cattle breeder wanted a line of “pure breeding” roan cattle. Would it be possible to have such a line? Why or why not?
一道SAT生物题 麻烦翻译 并且解答一下 谢谢A cattle breeder wanted a line of “pure breeding” roan cattle. Would it be possible to have such a line? Why or why not?
一名饲养员想要培育一批纯种繁殖的花毛牛.他能够得到这批花毛牛吗?为什么?
答案:不能.因为花毛牛是杂种后代,基因型为杂合子,符合孟德尔定律,在繁殖的过程中会发生显隐性分离,后代中不会全是花毛牛,所以不可能得到纯种繁殖的花毛牛.
一道SAT生物题 麻烦翻译 并且解答一下 谢谢A cattle breeder wanted a line of “pure breeding” roan cattle. Would it be possible to have such a line? Why or why not?
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