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प्रश्न
Choose the correct answer:
Males have more chances of suffering from sex-linked disease because of ___________
विकल्प
one Y chromosome
one X chromosome
autosomes
none of these
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उत्तर
Males have more chances of suffering from sex-linked disease because of one X chromosome
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संबंधित प्रश्न
Explain the mechanism of 'sex determination' in birds. How does it differ from that of human beings?
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 ______________
Match the items of Column I with Column II:
| Column I | Column II | ||
| i. | XX-XO method of Sex Determination | a. | Turner syndrome |
| ii. | XX-XY method of Sex Determination | b. | Female heterog ametic |
| iii. | karyotype-45 | c. | Grasshopper |
| iv. | ZW-ZZ method of Sex Determination | d. | Female homogametic |
Grasshopper is an example of XO type of sex determination in which the males have ______.
A zygote which has an X-chromosome inherited from the father will develop into a ______.
A zygote which has an X-chromosome inherited from the father will develop into a
Some dinosaurs had feathers although they could not fly but birds have feathers that help them to fly. In the context of evolution this means that
What is the probability of a girl or a boy being born into a family? Justify your answer.
