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प्रश्न
If a normal human cell has 46 chromosomes, how many chromosomes will be there in a human (i) sperm cell, and (ii) zygote?
उत्तर
A sperm cell will have half the number of chromosomes than present in a normal cell. Hence, the number of chromosomes present in it will be 23.
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संबंधित प्रश्न
Differentiate between 'ZZ' and 'XY' type of sex-determination mechanisms.
The number of pair(s) of sex chromosomes in the zygote of humans is :
(a) one
(b) two
(c) three
(d) four
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
Which combination of genes in the zygote will produce children with blue eyes?
Kavitha gave birth to a female baby. Her family members say that she can give birth to only female babies because of her family history. Is the statement given by her family members true? Justify your answer.
Distinguish between heterogametic and homogametic sex determination systems.
Chromosomal constitution of normal human females can be written as ______.
The belief that the mother is completely responsible for the sex of the child is wrong because the child
Sex in honey bee is determined by ______.
Name the two types of gametes produced by men.
