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प्रश्न
Drone of the honeybees shows haploid number of chromosomes. Illustrate.
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उत्तर
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संबंधित प्रश्न
Answer the following questions related to sex determination in human beings:
i. What is sex chromosome?
ii. How many pairs of chromosomes are present in human beings?
iii. How is the sex of the human offspring determined?
iv. Draw a diagram depicting sex determination in man.
Explain the mechanism of 'sex determination' in birds. How does it differ from that of human beings?
Which of the following combinations of sex chromosomes produce a male child : XX or XY?
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.
Define the following:
Sex chromosomes
Choose the correct answer:
A man can transfer his sex-linked gene to his ______________
Give Reason:
Why X-linked recessive diseases are more common among males than females.
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.
Which of the following group shows ZW-ZZ type of sex determination?
How is the sex of a newborn individual determined in different species of animals? Give three examples to support your answer.
