Meiosis starts with a single diploid cell and produces
A: Two haploid cells
B: Eight haploid cells
C: Four haploid cells
D: Four diploid cells
E: Two diploid cells
The correct answer is option C.
The Meiosis process starts with a single diploid cell and produces four haploid cells.
The word meiosis is originated from the Greek language, which means “to reduce”. It refers to reduce the number of chromosomes within a parent cell.
It is the process in which chromosomal reduction occurs in eukaryotic cells such as animals, plants, and fungi. It leads to the generation of germ cells or gametes, which is needed in sexual reproduction.
In meiosis, a diploid (a double set of chromosomes) is reduced to a haploid (a single set of the chromosome) to produce spores or germ cells. Because of their combination in sexual reproduction, a diploid zygote is created.
Haploid cells consist of one set of chromosomes (n).
Diploid cells consist of two full sets of chromosomes (2n).
The reduction of chromosomes in sexual reproduction is necessary because otherwise, it will lead to abnormalities in children. For instance, if a human with n = 46 to reproduce without a reduction in the number of chromosomes, the sperm cell, and egg cell will have n= 46. After their fusion, the embryo would also have 92 chromosomes which will result in genetic abnormalities in children. Thus, a chromosomal reduction is in each species is necessary to continue existence.
The chromosomes of the cell in meiosis undergo replication before the meiosis process begins because meiosis generates four daughter cells from half of the parent cell.
It generates four haploid cells from a single diploid cell. So a cell with 46 chromosomes will be converted to a cell with 92 chromosomes, which, will produce four cells with 23 chromosomes after meiosis.
Thus, meiosis uses recombination to produce four haploid daughter cells which are not identical to their diploid parent cell or each other