Biology questions regarding mitosis and meiosis?

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If there are 100 chromosomes before meiosis, how many are there after meiosis?

If there are 100 chromosomes before meiosis, how many are there after mitosis?
answer: 50?

If there are 100 chromosomes before meiosis, how many are there after mitosis?
answer: 100??


If a cell has two pair of homologous chromosomes before mitosis (after S phase),
then how many chromatids does it have?

answer: 4????



am i correct on these?
 
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