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A cat germ cell has a haploid number of 19 chromosomes.1) Number of cells in...

A cat germ cell has a haploid number of 19 chromosomes.

1) Number of cells in prophase 1 and telophase 1 of meiosis

2) Number of chromatids in prophase 1 and telophase 1 of meiosis

3) Number of chromosomes in prophase 1 and telophase 1 of meiosis

 

Solutions

Expert Solution

As the germ cell of a cat has a haploid number of 19 chromosomes, so, after the S phase of interphase the chromosomes will duplicate, and thus the number of chromosomes and chromatids will be doubled. This means after the S phase of interphase the chromosome number will be (19×2) = 38 and the chromatid number will be (38×2) = 76. This number will remain constant till telophase 1. After telophase 1, cytokinesis 1 will occur and the cell will be divided into two daughter cells each having 19 chromosomes means 38 chromatids.

Number of cells in prophase 1 1
Number of cells in telophase 1 1
Number of chromatids in prophase 1 76
Number of chromatids in telophase 1 76
Number of chromosomes in prophase 1 38
Number of chromosomes in telophase 1 38

 


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