Question

what is the outcome of meiosis?
a 2 diploid cells
b 4 diploid cells
c 4 haploid cells
d 2 haploid cells
which scenario best represents the role of meiosis in multicellular organisms?
a meiosis is used for reproduction of worn out or damaged cells.
b meiosis is used in growth and development in multicellular organisms.
c meiosis is used to produce haploid gametes which are fertilized in sexual reproduction.
d meiosis is used to produce diploid gametes which are fertilized in asexual reproduction.

Explanation:

First Question (What is the outcome of meiosis?):

Meiosis is a cell division process that reduces the chromosome number by half. It consists of two successive divisions (meiosis I and meiosis II), resulting in 4 daughter cells. These cells are haploid (have half the number of chromosomes of the parent cell). Option A is incorrect as meiosis doesn't produce 2 diploid cells. Option B is incorrect as the cells are haploid, not diploid. Option D is incorrect as it produces 4, not 2, haploid cells.

• Option A: Mitosis, not meiosis, is involved in the repair of worn - out or damaged cells.
• Option B: Mitosis is responsible for growth and development in multicellular organisms as it produces identical diploid cells for growth and tissue repair.
• Option C: Meiosis occurs in the reproductive organs of multicellular organisms to produce haploid gametes (sperm and egg cells). These gametes then fuse during sexual reproduction to form a diploid zygote.
• Option D: Meiosis produces haploid gametes, and asexual reproduction does not involve the fusion of gametes. Also, the gametes produced by meiosis are haploid, not diploid.

Answer:

C. 4 haploid cells

Second Question (Which scenario best represents the role of meiosis in multicellular organisms?):