47. Short answer questions XII

 

a. Is the chromosome number of zygote, embryonal cells and adult of a particular organism always constant?

 

b. Meiosis is the cell division through which the number of chromosomes are halved during gamete formation.

 

c. After fertilisation, the chromosomes become _______ to that of the somatic cells. After fertilisation, mitosis occurs for the rest of the stages of life. Hence the number of chromosomes remain constant.