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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
"The sex of a newborn child is a matter of chance and none of the parents may be considered responsible for it". Draw a flow chart showing determination of sex of a newborn to justify this statement.
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 :
Human sex chromosomes are __________
Answer the following question:
How is sex determined in human beings? Explain with the help of a diagram.
Explain the mechanism of sex determination in birds.
Distinguish between heterogametic and homogametic sex determination systems.
Name the two types of gametes produced by men.
Does a male child inherit X chromosome from his father? Justify.
An organism that possesses both male and female reproductive organs in the same individual is classified as which type?
In the haplodiploidy system observed in honeybees, fertilized eggs develop into which type of individual?
