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Another mutation occurring in an already...

Another mutation occurring in an already mutated gene gives rise to

A

multiple genes

B

multiple alleles

C

polygenes

D

pleiotropic genes

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Verified by Experts

The correct Answer is:
B
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TRUEMAN BIOLOGY-PRINCIPLES OF INHERITANCE AND VARIATIONS -MCQs
  1. When a mutation is limited to the substitution of one nucleotide pair ...

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  2. Aneuploidy arises through

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

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

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

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

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

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

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

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

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

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  12. Match the coloumns:

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  13. In Drosophila, XXY is female. In humans it represents a male because 1...

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  14. Queen victoria of England was 1. haemophiliac carrier 2. colour blin...

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  15. Number of nucleosomes found in helical coil of 30nm chromatin fiber is...

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  16. Seedless watermelons have been obtained through

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  17. In humans , Philadelhia chromosomee is formed by reciprocal translocat...

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  18. Frequency of an autosomal recessive lethal gene is 0.4 Frequency of ca...

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  19. Genic balance theory holds good in case of

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  20. A and B genes are linked. What shall be the genotype of progeny in a c...

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