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Down's syndrome is an example of...

Down's syndrome is an example of

A

1)aneuploidy

B

2)polyteny

C

3)polyploidy

D

4)monoploidy

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The correct Answer is:
A
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TRUEMAN BIOLOGY-PRINCIPLES OF INHERITANCE AND VARIATIONS -MCQs
  1. Turner's syndrome is

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  2. If haploid number is 10, what would be the number of monosomic and tet...

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  3. Down's syndrome is an example of

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  4. Webbed neck' is a characteristic of :

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

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  6. Carrier organism refers to an individual which carries a

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

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

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

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

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

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  12. Aneuploidy arises through

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

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

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

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

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

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

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

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

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