A single ovum of human being contains
A. X - chromosome
B. XX -chromosome
C. Y- chromosome
D. May be All
What is answer?
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Answer:
option A The chromosome pattern in the human female is XX and that in the male is XY. Therefore, all the haploid gametes produced by the female (ova) have the sex chromosome X, whereas in the male gametes (sperms) the sex chromosome could be either X or Y, hence, 50 per cent of sperms carry the X chromosome while the other 50 percent carry the Y.
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A single ovum of a human being contains a) X-Chromosome.
Explanation:
- The haploid gametes produced by the female (ova) have the sex chromosome X
- Egg cells all contain an X chromosome, while sperm cells contain an X or a Y chromosome.
- Meiosis forms haploid gametes (sperm and egg cells).
- All eggs contain one X chromosome. 50% of sperm contain one X chromosome and 50% contain one Y chromosome.
- A normal human cell has 22 pairs of autosomes and 2 sex chromosomes, but the meiosis forms the ova, due to which they have only half the number of chromosomes, which means 22 autosomes (11 pairs) and 1 sex chromosome.
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