Meiosis

What is the importance of genetic recombination during Meiosis?

• It decreases genetic diversity, leading to uniformity.

• It increases genetic diversity, which is essential for evolution and adaptation.

• It has no significant impact on genetic variation.

• It only affects the physical traits of an organism.

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What is the difference between haploid and diploid cells?

• Haploid cells contain two sets of chromosomes (2n), while diploid cells contain one set (n).

• Haploid cells contain one set of chromosomes (n), while diploid cells contain two sets (2n).

• Haploid cells are found in somatic cells, while diploid cells are found in gametes.

• Haploid cells are larger than diploid cells in size.

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What occurs during Metaphase I of Meiosis?

• Homologous chromosomes line up along the equatorial plane of the cell.

• Sister chromatids separate and move to opposite poles.

• Chromosomes replicate to form sister chromatids.

• Homologous chromosomes undergo crossing over.

What happens during Anaphase II of Meiosis?

• Sister chromatids are pulled apart to opposite poles of the cell.

• Homologous chromosomes are separated to opposite poles of the cell.

• Chromosomes are replicated to form sister chromatids.

• The nuclear envelope re-forms around each set of chromosomes.

What is the outcome of Meiosis?

• Meiosis results in two identical diploid cells.

• Meiosis results in four genetically diverse haploid cells.

• Meiosis results in one diploid cell.

• Meiosis results in three haploid cells.

What is the first phase of Meiosis I?

• Metaphase I

• Anaphase I

• Prophase I

• Telophase I

What is the role of chiasmata during Meiosis?

• Chiasmata are points where homologous chromosomes exchange genetic material during crossing over.

• Chiasmata are structures that separate sister chromatids during anaphase.

• Chiasmata are proteins that help in the formation of the spindle apparatus.

• Chiasmata are sites where DNA replication occurs.

What is the final product of Meiosis in terms of chromosome number?

• Two diploid cells, each with the original chromosome number.

• Four diploid cells, each with the original chromosome number.

• Four haploid cells, each with half the original chromosome number.

• One haploid cell, with the original chromosome number.

During which phase of Meiosis do homologous chromosomes separate?

• Prophase I

• Anaphase I

• Metaphase II

• Telophase I

How does Meiosis contribute to genetic variation?

• Through independent assortment and crossing over.

• By producing identical daughter cells.

• By replicating DNA without division.

• By eliminating genetic material from the organism.

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