Question

1) What is the importance of crossing over in meiosis?

a. Crossing over results in the correct orientation of chromosomes during anaphase.

b. Crossing over results in both sets of parents being upset at their offspring for being annoying.

c. Crossing over results in genetic recombination and diversity within a species.

d. Crossing over results in division of chromosomes during telophase of mitosis

2) What does meiosis result in?

a. Meiosis results in halving the number of chromosomes that were there in the cell.

b. Meiosis results in tripling the number of chromosomes that were there in the cell.

c. Meiosis results in binary fusion.

d. Meiosis results in creating identical daughter somatic cells.

Answer 1

Answer1 - Option c) Crossing over results in genetic recombination and diversity within a species.

Explanation - Crossing over is essential for the normal segregation of chromosomes during meiosis .Crossing over accounts for genetic variation, because due to the swapping of genetic material during crossing over , the chromatids held together by the centromere are no longer identical.

Answer 2) option a) Meiosis results in halving the number of chromosomes that were there in the cell.

Explanation - In a mitotic division, which yields two identical diploid daughter cells and this division occurs in somatic cells. While, the end result of meiosis  is haploid daughter cells with chromosomal combinations different from those originally present in the parent. In sperm cells, four haploid gametes are  produced.This division occurs in reproductive cells.