Question

The number of diploid cells necessary to produce 60 haploids cells meiotically would be
A. 60
B. 15
C. 30
D. 10

Answer 1

Hint: Meiosis is a process where a cell divides twice to form 4 haploid cells. These cells are sperms and egg cells.

Complete answer: Meiosis is a division that occurs in a diploid cell and gives rise to four haploid cells or nuclei. It occurs in sexually reproducing cells.
1. It involves two rounds of division that ultimately result in four cells with only one copy of each chromosome (haploid).
2. Before the division, crossing over takes place and genetic material from the paternal and maternal copies of each chromosome is crossed over, creating new combinations of code on each chromosome.
3. Each cell has half the number of chromosomes as compared to the parent cell.
4. Later on, during fertilization, the haploid cells produced by meiosis from a male and female will fuse to create a cell with two copies of each chromosome again to form the zygote.
5. So, to produce 60 haploid cells, it should be one-fourth of the 60 haploid cells.
6. If we divide 60/4 it will be 15, which will be the necessary number of diploid cells.

Additional information: Meiosis is known as reduction division.
Meiosis is divided into meiosis I and meiosis II which are further divided into Karyokinesis I and Cytokinesis I and Karyokinesis II and Cytokinesis II respectively.

So, the answer is B. 15

Note: Meiosis is a Greek word, meaning "lessening.
Errors in meiosis results in aneuploidy (an abnormal number of chromosomes).
It is the leading known cause of miscarriage and the most frequent genetic cause of developmental disabilities.