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प्रश्न
What is Lyonisation?
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उत्तर
Lyonisation is a process of inactivation of one of the X chromosomes in some females.
संबंधित प्रश्न
Explain the mechanism of 'sex determination' in birds. How does it differ from that of human beings?
In a human, how many chromosmes are present in a fertilised egg?
In human males all the chromosomes are paired perfectly except one. This/these unpaired chromosomes is/are :
(i) large chromosome
(ii) small chromosome
(iii) Y chromosome
(iv) X chromosome
A couple with a newborn baby is troubled that the child does not resemble either of them. Suspecting that a mixup occurred at the hospital, they check the blood type of the infant. It is type O. Because the father is type A and the mother type B, they conclude that a mixup has definitely occurred. Are they correct? Give reason for your answer.
Choose the correct answer:
Males have more chances of suffering from sex-linked disease because of ___________
Which of the following determines the sex of a child?
A trait in an organism is influenced by
The belief that the mother is completely responsible for the sex of the child is wrong because the child
Twins are born to a family that lives next door to you. The twins are a boy and a girl. Which of the following must be true?
