NEET BIOLOGY

REPRODUCTION

REPRODUCTION IN ORGANISMS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
pairs
A
number of chromosomes in human skin
B
number of chromosomes in bird skin
C
number of chromosomes in reptile skin
D
number of chromosomes in reproductive cells
Explanation: 

Detailed explanation-1: -In humans, each cell normally contains 23 pairs of chromosomes, for a total of 46.

Detailed explanation-2: -In a skin cell of humans, 46 chromosomes are present(human diploid number).

Detailed explanation-3: -The skin cell is a somatic cell, also known as vegetative cell which is the building block of the human body. It has 23 pairs of chromosomes, which is identical to those in the cells of the brain, eyes, etc. Therefore, a total of 46 chromosomes are present in the skin cells which, on cell division, remain the same.

Detailed explanation-4: -The answer is true. Autosomal cells, such as skin cells, contain 46 chromosomes in humans. They are diploid (2n). Gametes, including the sperm and ova, are haploid (n) and therefore contain 23 chromosomes.

Detailed explanation-5: -The chromosomal diploid number in humans is 46 (i.e. 2n=46 chromosomes or 23 pairs of chromosomes). All the body cells like, blood cells, skin cells, muscle cells are diploid.

There is 1 question to complete.