
The numbers of chromosomes in woman gamete are
(A)23
(B)46
(C)32
(D)48
Answer
565.8k+ views
Hint: The number of chromosomes throughout the body (somatic) cells is usually diploid; double the haploid (1n) number present within gametes or sex cells, in organisms that reproduce sexually.
Complete answer:
First, we should know about chromosomes to answer this question. A chromosome is a lengthy molecule of DNA with some or more of an organism's genetic material. Many eukaryotic chromosomes contain packing proteins known as histones that attach and condense the DNA molecule to preserve its integrity, supported by chaperone proteins. These chromosomes show a complex three-dimensional structure that plays an essential role in transcriptional control.
Now, let us find the solution from the options-
- The human system of sex differentiation is XX-XY, wherein females possess forty-six chromosomes distributed in twenty-three homologous, homomorphic pairs.
-There are twenty-two homomorphic pairs for males or one heteromorphic pair, the pair XY. Both gametes formed by females comprise only the X chromosome throughout meiosis (22 A + X; total 23), while males develop two forms of gametes, 1/2 X-gametes and 1/2 Y-chromosome gametes i.e. 22 A + X as well as 22 A + Y, thus the total is 23.
Egg fertilisation of 22 + X of sperm bearing 22 + Y chromosomes resulting in a total of 46 in a female foetus with 44A + XX. Egg fertilisation with sperm bearing 22+Y chromosomes resulting in male offspring, i.e. 44A + XY; there are 46 chromosomes in total.
Hence, the correct answer is option(A)
Note: The chromosome number will always be the same in any provided asexually reproducing organisms. An individual with some number of diploid chromosomes is known to be polyploid.
Complete answer:
First, we should know about chromosomes to answer this question. A chromosome is a lengthy molecule of DNA with some or more of an organism's genetic material. Many eukaryotic chromosomes contain packing proteins known as histones that attach and condense the DNA molecule to preserve its integrity, supported by chaperone proteins. These chromosomes show a complex three-dimensional structure that plays an essential role in transcriptional control.
Now, let us find the solution from the options-
- The human system of sex differentiation is XX-XY, wherein females possess forty-six chromosomes distributed in twenty-three homologous, homomorphic pairs.
-There are twenty-two homomorphic pairs for males or one heteromorphic pair, the pair XY. Both gametes formed by females comprise only the X chromosome throughout meiosis (22 A + X; total 23), while males develop two forms of gametes, 1/2 X-gametes and 1/2 Y-chromosome gametes i.e. 22 A + X as well as 22 A + Y, thus the total is 23.
Egg fertilisation of 22 + X of sperm bearing 22 + Y chromosomes resulting in a total of 46 in a female foetus with 44A + XX. Egg fertilisation with sperm bearing 22+Y chromosomes resulting in male offspring, i.e. 44A + XY; there are 46 chromosomes in total.
Hence, the correct answer is option(A)
Note: The chromosome number will always be the same in any provided asexually reproducing organisms. An individual with some number of diploid chromosomes is known to be polyploid.
Recently Updated Pages
A man running at a speed 5 ms is viewed in the side class 12 physics CBSE

State and explain Hardy Weinbergs Principle class 12 biology CBSE

Which of the following statements is wrong a Amnion class 12 biology CBSE

Two Planoconcave lenses 1 and 2 of glass of refractive class 12 physics CBSE

The compound 2 methyl 2 butene on reaction with NaIO4 class 12 chemistry CBSE

Bacterial cell wall is made up of A Cellulose B Hemicellulose class 12 biology CBSE

Trending doubts
What are the major means of transport Explain each class 12 social science CBSE

Which are the Top 10 Largest Countries of the World?

Draw a labelled sketch of the human eye class 12 physics CBSE

Explain sex determination in humans with line diag class 12 biology CBSE

The pH of the pancreatic juice is A 64 B 86 C 120 D class 12 biology CBSE

Give 10 examples of unisexual and bisexual flowers

