Question

During metaphase a homologous pair of chromosomes consists of _____. 2 chromosomes and 4 chromatids 4...

During metaphase a homologous pair of chromosomes consists of _____.

2 chromosomes and 4 chromatids

4 chromosomes and 2 chromatids

1 chromosome and 2 chromatids

2 chromosomes and 2 chromatids

1 chromosomes and 4 chromatids
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Answer #1

ANSWER :-

a.) 2 chromosomes and 4 chromatids.

Metaphase is a stage during cell division, during this stage the cell cycle are at their second most condensed and coiled stage. In this stage, the chromosomes lined up at the metaphasis plate, under tension from the mitotic spindle. There are two pairs of chromosomes present during metaphse, but chromatids doubles.

For eg, in humans, (2n=46), that is 46 chromosomes are presents during metaphse, but 92 chromatids. During this stage, the two sister chromatids of each chromosomes are captured by microtubles from opposite spindle poles, the spindle captures all the chromosomes and lined them up at the middle of the cell ready to divide.  

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