请问能画一下有丝分裂和减数分裂带DNA的图吗?求解,第4,急

2025-03-15 12:04:20
推荐回答(1个)
回答1:

你可以去买一本知识清单,上面什么都有

如果你不想花钱,那么好吧,以下

向左转|向右转

向左转|向右转

第一幅是有丝分裂,第二幅是减数分裂。

你要自己学会记,这个不难,你看,有丝分裂间期DNA会加倍吧,但是它是一条条的加倍,所以是连续的,所以是斜线,如果考试中遇到此类图,你一看有斜线,就应该知道,那是DNA的变化曲线,然后是间期DNA加倍完距离有丝分裂前期还有一段时间,所以还应该往前画直线,前期中期DNA数目不变,所以还是平的,后期染色体分裂,但是核DNA数目还是不变,因为它还没有形成细胞板,到末期,染色体均分到两个细胞后,每个细胞的DNA就减半啦,很简单吧。

  剩下的以此类推,只要你知道每个时期染色体做了什么,画图就是小case,不过你也要自己画一遍,然后和原图对照,看看哪里不一样,这样可以知道你是哪里记错了。

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