Meiosis Question!! Watch

ScienceGeek3
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Hi!

I was revising for my AS Biology unit 2 exam and was on the topic of meiosis.. I was just wondering if someone could explain to me, after the first division the homologous pair of chromosomes split up to form two separate cells. After the second division, do each of the chromosomes in one of the two cells split to give four cells that have 1 chromatid each or four cells that have 1 chromosome each :s..

Thanks for any help
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wasting-time
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when sister chromotids are seperated each half is counted as a chromosone
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AquilaXenon
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Technically both.

A chromosome consists of one chromatid but after DNA replication a chromosome consists of two chromatids joined by a centromere. During meiosis they are called chromatids and hence a chromosome consists of two. But after the second stage of meiosis when there are 4 daughter cells containing only 1 chromatid (which you might first think as being half a chromosome), it goes back to being called a chromosome.

Does that make sense? It took my Biology class forever to understand this!
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