Question

How many chromosomes are present in the human body?
a. 23 nos.
b. 23 pairs
c. 46 pairs
d. 44 pairs

Answer 1

Hint: In asexually reproducing species, mainly the chromosome number remains the same, whereas, in comparison to the sexually reproducing species, individuals can be produced from the unfertilized eggs and therefore remain haploid, some examples for this are a male bee.

Complete answer:
> The correct answer to this question is the second option that is the (b) 23 pairs. There are a total of 23 pairs of chromosomes present in the human body that means a total of 46 chromosomes.
> The first option given in the question is 23 numbers of chromosomes. This option is wrong because there are a total of 46 numbers of chromosomes present in the nucleus.
> The third option is the 46 pairs of the chromosomes that are also the wrong answer because there are only 23 pairs, not the 46 pairs, hence it is the wrong option.
> The next option is the 44 pairs that are also the wrong answer.

Additional Information:
A chromosome is a thread-like structure that is generally present in the nucleus of the cell. Every chromosome is made when the DNA is tightly coiled around a protein called histones.
This histone only supports the structure of the chromosome. Chromosomes are not visible in the cell nucleus when the cell is in non-dividing stages. DNA that makes that chromosome becomes visible when the DNA becomes tightly packed during the cell division.
Each chromosome has a part called the centromere, which generally divides the chromosome into two sections or also called arms. The shortest part of the chromosome is called the p arm; whereas the larger part of the chromosome is called the q arm.
Generally, the location of the centromere in the chromosome gives the chromosome its specific shape and the character. The location of the centromere also affects the position of the genes on the chromosomes.

Note: Chromosome is looked like the thread-like and mainly present in the nucleus of the cell. A chromosome is made when the highly tight DNA coil around the protein called histones. Chromosomes generally contain the long strands of DNA that contain genetic information in it. When both prokaryotic chromosomes and eukaryotic chromosomes are being compared, the eukaryotic chromosomes are much larger than the prokaryotic chromosomes.