Question

3. Answer the following questions for a cell from an organism with a diploid

chromosome number of 30.

How many total sister chromatids would be present at metaphase of

mitosis?

How many homologous pairs of chromosomes would be present at

metaphase of mitosis?

Would homologous pairs of chromosomes be aligned at metaphase of

mitosis?

How many sister chromatids would be present at metaphase of meiosis I?

How many homologous pairs of chromosomes would be present at the

conclusion of meiosis I?

How many sister chromatids would be present at metaphase of meiosis II?

Answer 1

• 60 sister chromatid present at metaphase of mitosis. Because the original chromosome got duplicated in S phase already.
• 30 homologus pair would be present at end of metaphase of mitosis.
• Homolgus chromosomes get aligned on the equator called metaphasic plate.
• 60 chromatids would present at the end of metaphase I of meosis I.
• 30 homologus pair will present at the end of meiosis I.
• 30 sister chromatids would preswnt at the end of metaphase of meiosis II.