Biology, asked by rohit793, 1 year ago

explain meosis in detaile

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Answered by 1Anushka12
1
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The origin and function of meiosis are fundamental to understanding the evolution of sexual reproduction in eukaryotes.
Meiosis is a key event of the sexual cycle in Eukaryotes. It is the stage of the life cycle when a cell gives rise to two haploid cells (gametes) each having half as many chromosomes.

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Answered by BrainlyVirat
2
Here is the answer ..

 \red {\text{Meiosis}}


1. There are two stages of Meiosis.
Meiosis I and Meiosis II.

2. By meiosis , from one diploid cell, four haploid cells are formed.

3. In meiosis, crossing over between the non - sister chromatids of homologous chromosomes occur.
This results in generic recombination.

4. The four daughter cells formed after completion of meiosis are genetically recombined and not exactly alike and also not exactly similar to their parents cells.

 \red {\text{Meiosis I}}

1. Homologous chromosomes undergo crossing over and hence there is generic recombination.

2. The homologous chromosomes are divided into two groups and from these , two haploid cells are formed.

3. Prophase I of meiosis is lengthy phase which is subdivided into 5 phases , viz. Leptotene, Zygotene, Pachytene, Diplotene and Diakinesis. During Pachytene , crossing over takes place.

 \red {\text{Meiosis II}}


1. Meiosis II is similar to Mitosis that is mitotic division.

2. The two haploid cells that are produced in meiosis II now undergoes further division forming four haploid cells.
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