Question

Meiosis occur in organism during :
A) Sexual reproduction
B) Vegetative reproduction
C) Both vegetative and sexual reproduction
D) None of these

Answer 1

Meiosis is a division that occurs in diploid cells and gives rise to nuclei or haploid cells. That produces daughter cells with half the number of chromosomes that are present in the parent cell. This type of cell division occurs in different organisms.

Complete answer:
INTRODUCTION :
Meiosis is a process of producing gametes (Eggs and sperm). Meiosis takes place in sexually Reproducing organisms. Eukaryotic cells undergo meiosis cell division, of which a diploid cell (2N) produces Four haploid cells. This process takes place in Meiocyte of sexually reproductive cells.
A) SEXUAL REPRODUCTION : Sexual reproduction occurs by combination of two organism’s genetic material. This type of reproduction involves fusion of male and female gametes. The cell division occurs in diploid parent cells, producing two daughter cells.
B) VEGETATIVE REPRODUCTION : Vegetative reproduction is the form of Asexual method of reproduction occurs in plants, it forms a new plant variants through regeneration or by fragmentation. This type of Reproduction does not involve fusion of gametes or change in chromosome number. Meiosis does not occur by Asexual reproduction.
C) BOTH VEGETATIVE AND SEXUAL REPRODUCTION : Asexual method of reproduction is mostly seen in prokaryotic organism. This type of reproduction does not involve reproductive organs. Sexual method of reproduction is seen in multicellular organisms. This type of reproduction occurs only by the involvement of reproductive organs.

Thus, the correct answer is option A) Sexual Reproduction.

Note :
Most of the Eukaryotes are involved in Sexual Reproduction. Meiosis process takes place only in sexually reproducing organisms. This process firstly involves the duplication of chromosomes of diploid cells and produces four haploid cells through two successive cell division.In humans sperm and egg cells are produced through meiosis process.