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Selection will not eliminate a lethal re...

Selection will not eliminate a lethal recessive gene from a large population because

A

there are always some heterozygote carriers of the allele

B

gene fixation occurs in population

C

heterozygotes are at a selective advantage

D

rate of mutation to the lethal allele is high

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The correct Answer is:
A
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  2. 12:3:1 ratio is due to which type of gene interaction

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  3. Selection will not eliminate a lethal recessive gene from a large popu...

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  4. A modified dihybrid mendelian ratio of 9:3:4 shows

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  5. Failure of one gene to express it in the presence of a non-allelic gen...

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  7. Wife is PTC nontaster and husband is PTC taster. Their son is taster b...

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  8. Which gene is connected with multiple phenotypes?

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  9. If both parents are albino, all the offspring shall be

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  10. Albinism is due to nonsynthesis (absence) of melanin on account of abs...

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  11. A recessive trait in garden pea is

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  12. Which is correct about traits chosen by Mendel ?

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  13. "Gametes are never hybrid ". It is a statement of law of

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  14. 23 pairs of chromosomes can give rise to how many combinations?

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  15. R is dominant red flowerr trait while r is recessive white flower trai...

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  16. In complementary gnes, the dihybrid ratio of 9:3:3:1 is modified to

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  17. Select the statement which is not correct?

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  18. On selfing a plant of F(1)-generation with genotype "AaBbCC", the phen...

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  20. Gene is a stable discrete unit of information (heredity). This term ge...

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