某生物体细胞中含有X条染色体,在细胞分裂过程中,染色体的数目

某生物体细胞中含有X条染色体,在细胞分裂过程中,染色体的数目变化情况是  

AXXX            BX2X2X         CX2XX          D2X2XX

答案

C

相关题目

_________history of this special Pacific island brought _________unusual feeling
_________history of this special Pacific island brought _________unusual feeling to me. A.The,a                B.A. an            C.The,an             
— Why not go out and play football? — ___________. A. Yes, I think so   
— Why not go out and play football? — ___________. A. Yes, I think so            B. Yes, I will C. It’s a good game         D. That’s a good idea  
实验表明,K+不能通过磷脂双分子层的人工膜,但如在人工膜
实验表明,K+不能通过磷脂双分子层的人工膜,但如在人工膜中加入少量缬氨霉素(含12个氨基酸的脂溶性抗生素)时,K+则可以通过膜从高浓度处移向低浓
It’s hardly surprising that weather is a favorite topic for so many people aro
It’s hardly surprising that weather is a favorite topic for so many people around the world---it affects where we choose to live, what we wear, our moods, and perhaps even our national characteristi
已知3a﹣2b=2,则9a﹣6b=
已知3a﹣2b=2,则9a﹣6b=
为提纯下列物质(括号内为杂质),选用的试剂和分离方法
为提纯下列物质(括号内为杂质),选用的试剂和分离方法都正确的是(   )  物质试剂分离方法 ①甲烷(乙烯)溴的四氯化碳溶液洗气 ②溴苯(
 (2009河北保定第一学期高三调研,13)已知{an}是公比为q的等
 (2009河北保定第一学期高三调研,13)已知{an}是公比为q的等比数列,且a2,a4,a3成等差数列,则q=___________.
对任意,函数的值恒大于零,则的取值范围是 A.     B.
对任意,函数的值恒大于零,则的取值范围是 A.     B.    C.   D.

最新题目