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प्रश्न
A normal cell of human body contains 23 pairs of chromosomes. The number of chromosomes in a sex cell (sperm or ovum) of a human being is most likely to be :
(a) 46
(b) 23
(c) 21
(d) 42
उत्तर
The number of chromosomes present in a sex cell of a human being would normally be 23.
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संबंधित प्रश्न
Does genetic combination of mother play a significant role in determining the sex of a new born baby?
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
What is heterogamety ? Explain the mechanism of sex determinatin in Drosophila.
Choose the correct answer:
A single recessive trait, able to express must be on _________
Grasshopper is an example of XO type of sex determination in which the males have ______.
The number of pairs of sex chromosomes in the zygote of a human being is ______
The maleness of a child is determined by ______
The belief that the mother is completely responsible for the sex of the child is wrong because the child
Which pair of sex chromosome will determine a male?
What is sex determination? Explain the mechanism of sex determination in the case of birds.
