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Barr body in normal female is due to ina...

Barr body in normal female is due to inactivation of

A

Maternally derived X chromsome

B

Paternally derived X chromosome

C

estra chromsome

D

either maternal or peternal X-chromosome

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A
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TRUEMAN BIOLOGY-PRINCIPLES OF INHERITANCE AND VARIATIONS -MCQs
  1. Down's syndrome is an example of

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  2. Webbed neck' is a characteristic of :

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  3. Barr body in normal female is due to inactivation of

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  4. Carrier organism refers to an individual which carries a

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  5. A woman has haemophilic brother and normal parents. She wants to marry...

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  6. The grandsons of a colour blind male through daughter having the follo...

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  7. If the frequency of a dominant phenotype in a stable population is 75%...

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  8. If we ignore the effect of crossing over, how many different haploid c...

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  9. When a mutation is limited to the substitution of one nucleotide pair ...

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  10. Aneuploidy arises through

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  11. Another mutation occurring in an already mutated gene gives rise to

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  12. Haploid plants are preferred over diploids for mutation studies, becau...

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  13. Mutational events, which result in the deletion or addition of nucleot...

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  14. Which of the following mutational events is most difficult to detect? ...

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  15. Which of the following represents an amphidiploid (or allopolyploid) c...

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  16. A polyploid species having multiple and identical sets of chromosomes ...

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  17. Slight difference in identical twins support the hypothesis that 1. do...

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  18. An allopolyploid has 4 or more sets of chromosomes. These sets come fr...

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  19. An organism or cell having a chromosome number exactly mutiple of hapl...

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  20. Match the coloumns:

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