Differentiate a)Metaphase I of Meosis from Metaphase of mitosis. b)Anaphase I of Meiosis from Anaphase of mitosis.
Please find below the solution to the asked query
a.
| Mitotic metaphase | Meiotic metaphase I |
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A single chromosome consisting of two chromatids each align at the equator |
Bivalent chromosomes with four chromatids in each align on the equatorial plate |
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Here centromeres of the chromosomes lie on spindle equatorial plate while the chromatids extend freely |
Here arms of paired chromosomes lie on equatorial plate of spindle while as the centromeres are directed towards poles. |
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Both of the chromatids of each chromosome are genetically similar |
The four chromatids of the bivalent (tetrad) are genetically non identical because of the process of crossing over. |
b.
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Anaphase of mitosis |
Anaphase I of meiosis |
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Anaphase is the stage during which the centromere splits and the chromatids separate. The chromosomes move apart, toward the opposite poles. These chromosomes are genetically identical. |
During anaphase I , the homologous chromosomes separate, while the chromatids remain attached at their centromeres. Hence, in anaphase I , the chromosomes of each bivalent pair separate, while the sister chromatids remain together. |
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