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1. Why do we need meiosis?
- Meiosis is necessary because it is the basis of sexual reproduction. It allows for genetic diversity and variation among offspring.
2. Sexual or Asexual?
- Meiosis is associated with sexual reproduction, whereas mitosis is linked to asexual reproduction.
3. Diploid or haploid formed?
- Meiosis results in the formation of haploid cells (1n), which have half the number of chromosomes compared to the original cell. In contrast, mitosis produces diploid cells (2n) with the same number of chromosomes as the parent cell.
4. Number of Divisions?
- Meiosis involves two divisions: Meiosis I and Meiosis II. This process is crucial in reducing the chromosome number by half and ensuring genetic diversity.
5. Number of cells produced?
- Meiosis leads to the formation of four genetically unique haploid cells (sperm or egg cells) at the end of the process. In contrast, mitosis results in two identical diploid daughter cells.
6. Lead to Genetic Variation?
- Meiosis is essential for genetic variation. It shuffles genetic material through processes like crossing over and independent assortment, resulting in genetically diverse offspring.
In summary, meiosis is vital for sexual reproduction, leads to the formation of haploid cells, involves two divisions, produces four unique cells, and contributes significantly to genetic variation among offspring.
