Question

What is a diploid number of chromosome?
(a) 3
(b) 6
(c) 12
(d) 4

Refer to the image given
I need explanation ​

Answer 1

Answer:

a.3

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Answer 2

The diploid number Of chromosome will be b) 6 according to image given

Explanation:

• This picture represent metaphase state of  a mitotic cycle. here all the chromosomes of this cell arranged at equatorial plane of the cell.
• As it is the picture of mitotic cycle, the cell is diploid. Diploid means each chromosome has two sets.  according to image given one chromosome name A , other chromosome name B,  suppose third chromosome name is given E. Now this A,B,E chromosome exist as two copy so there are 3×2=6 chromosome arranged on metaphase plate.
• During anaphase of mitosis each sister chromatid move toward opposite pole and now each sister chromatid designated as chromosome. so there are 6 chromosomes on one pole and 6 chromosome on the other pole so diploid number is 6.
• If this picture represent meiosis  then A chromosome pair with its homologous chromosome A , B chromosome pair with its homologous  chromosome B, E chromosome pair with its homologous chromosome E and arranged at equatorial plane.
• during anaphase of meiosis, 3 chromosomes move toward one pole and 3 chromosomes on other pole, so haploid number will be 3, and diploid number will be 6.