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Biology
Posted 5 months ago
How are the chromosomes diffrent in Metaphase I in meiosis compared to meaphase on mitosis?
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Answer from Sia
Posted 5 months ago
Answer
Chromosomes in Metaphase I of meiosis are different from those in metaphase of mitosis in several key ways.
Solution
a
Homologous Chromosomes: In Metaphase I of meiosis, homologous chromosomes (each consisting of two sister chromatids) pair up and align along the metaphase plate. This pairing is called synapsis
b
Single Chromosomes: In metaphase of mitosis, individual chromosomes (each consisting of two sister chromatids) align independently along the metaphase plate without pairing
c
Genetic Variation: The alignment of homologous chromosomes in Metaphase I of meiosis allows for crossing over and genetic recombination, which increases genetic diversity. This does not occur in mitosis
Key Concept
Homologous Chromosome Pairing
Explanation
In Metaphase I of meiosis, homologous chromosomes pair up and align along the metaphase plate, whereas in mitosis, individual chromosomes align independently. This pairing in meiosis allows for genetic recombination, increasing genetic diversity.
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