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प्रश्न
Does the sex of the child depend on the father or it is just a matter of chance? Discuss.
उत्तर
The sex of the child depends on the father. The egg contains only one X chromosome, but half of the sperm contain an X chromosome whereas the other half contains a Y chromosome. It is simply a matter of chance as to which category of sperm fuses with the ovum and this determines whether the child will be male or female.
If the egg fuses with X-bearing sperm, the resulting combination is XX and the resulting child is female. If the egg fuses with Y-bearing sperm, the resulting combination is XY and the resulting child is male.
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संबंधित प्रश्न
Explain the mechanism of sex determination in birds.
Name the species used in sericulture. Name the stages in the life cycle of a silk moth in cyclic form.
Explain the mechanism of 'sex determination' in birds. How does it differ from that of human beings?
A new born child has an XY pair of chromosmes. Will it be a baby boy or a baby girl?
Name any two genetic in humans.
Complete the following sentence with appropriate word:
______are the alternative forms of a gene producing different effects.
Short Answer Question.
“Father is responsible for determination of sex of child and not the mother”. Justify.
The maleness of a child is determined by
A zygote which has an X-chromosome inherited from the father will develop into a
The number of pair (s) of sex chromosomes in the zygote of humans is
