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प्रश्न
Does the sex of the child depend on the father or it is just a matter of chance? Discuss.
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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
There are two sets of chromosomes in the zygote.
Explain how, sex is determined in human babies.
In a human, how many chromosmes are present in a sperm in the testes?
A zygote which has inherited an X chromosome from the father will develop into :
(a) baby boy
(b) baby girl
(c) adult
(d) either boy or girl
A family consists of two parents and their five children and the pedigree chart below shows the inheritance of the trait colour blindness in them.
Who is colour blind in the parents – the Father or the Mother?
Give Reason:
Why X-linked recessive diseases are more common among males than females.
XO type of sex determination and XY type of sex determination are examples of ____________.
The ‘X’ body of Henking was observed in ______.
Select the incorrect statement
Which pair of sex chromosome will determine a male?
