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-there are 46 chromosomes
-there are 46 homlogous pair of chromosome
- there are 92 chromatids
-in metaphase there are 46 homologous pair with 92 chromatids. In Anaphase the homologous pair separate and has 46 chromatids at one pole and 46 chromatids at the other pole. In cytokinesis, there are 2 cells with 46 chromatids. Since the chromatids were seperated out they are now called CHROMSOME. therefore we have 2 cells with 46 chromosomes or 2 diploid cells. Is this correct with the numbers used?

2006-12-29 05:34:05 · 2 answers · asked by avalentin911 2 in Science & Mathematics Biology

using numbers 23,46, and 92(unless I am wrong)

2006-12-29 05:34:40 · update #1

2 answers

You're mixing up terms from meiosis with mitosis. The term "homologous pair" is not used in mitosis. Otherwise, you have it right.

In metaphase, there are 46 chromosomes, each one consisting of two chromatids, for a total of 92 chromatids. In anaphase, each chromosome separates into two.

In meiosis, the term "homologous pair" refers to the pairing of chromosomes--not the pairing of chromatids (which is how you are using it). Each chromosome consists of two chromatids; so the homologous pair has a total of four chromatids. In meiosis I, you have 23 homologous pairs that separate into two daughter cells, each with 23 chromosomes (each still consisting of two chromatids). In meiosis II, the chromosomes separate their two chromatids in a process similar to mitosis (only you have 23 chromosomes, instead of 46).

2006-12-31 19:15:59 · answer #1 · answered by grimmyTea 6 · 1 0

There are 23 homologous pairs of chromosomes, not 46 pairs...

2006-12-29 05:51:09 · answer #2 · answered by ruadhdarragh 3 · 1 0

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