NEET BIOLOGY

CELL STRUCTURES AND FUNCTION

CELL DIVISION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
If a diploid organism has a genome consisting of 22 chromosomes, its gametes will have ____ chromosomes
A
44
B
22
C
11
D
20
Explanation: 

Detailed explanation-1: -If the somatic cell of an organism has 22 chromosomes, its gametes will have chromosomes. Gametes are haploid.

Detailed explanation-2: -If the chromosome number for an organism is 22 before mitosis, then the chromosome number of each daughter cell after mitosis has taken place will also be 22. This is because mitosis produces two daughter cells that are genetically identical in terms of chromosome number and the genetic content of the chromosomes.

Detailed explanation-3: -Gametes are produced through a type of cell division called meiosis and hence are haploid in nature. They carry only one copy of each chromosome and therefore contain only 23 chromosomes.

Detailed explanation-4: -The homologous chromosomes are separated when gametes are formed. Therefore, gametes have only 23 chromosomes, not 23 pairs.

There is 1 question to complete.