Home
Class 12
BIOLOGY
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

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • Plant Physiology

    TRUEMAN BIOLOGY|Exercise ASSERTION AND REASON|91 Videos

  • Protista

    TRUEMAN BIOLOGY|Exercise ASSERTION AND REASON|6 Videos

Similar Questions

Explore conceptually related problems

What is recessive gene?

What is recessive gene?

A palnt expressing a gene from another organism is

Select an autosomal recessive genetical hereditary disease-

Sum of all the genes is a population is called

Natural selection can eliminate a deleterious allele, arising out of mutation, only when it is:

A plant expressing a gene from another organism is

Lethal gene are

If the frequency of a dominant phenotype in a stable population is 75%, the frequency of recessive allele in that population would be

Bt gene is got from

TRUEMAN BIOLOGY-PRINCIPLES OF INHERITANCE AND VARIATIONS -MCQs
  1. Sickle cell anaemia is due to substitution/transversion (point mutatio...

    Text Solution

    |

  2. 12:3:1 ratio is due to which type of gene interaction

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

  6. If a negro marries a white skin female, the mulattoes are born.if such...

    Text Solution

    |

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

    Text Solution

    |

  8. Predict from the following chart

    Text Solution

    |

  9. In the following pedigree chart, the mutant trait is shaded black. The...

    Text Solution

    |

  10. In the given pedigree, what the shaded symbols indicate 1. Dominan...

    Text Solution

    |

  11. From the pedigree of a family given below, it is clear that trait is i...

    Text Solution

    |

  12. In a family, father had a trait but mother did not. All their sons and...

    Text Solution

    |

  13. Which gene is connected with multiple phenotypes?

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

  16. A recessive trait in garden pea is

    Text Solution

    |

  17. Which is correct about traits chosen by Mendel ?

    Text Solution

    |

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

    Text Solution

    |

  19. 23 pairs of chromosomes can give rise to how many combinations?

    Text Solution

    |

  20. R is dominant red flower trait while r is recessive white flower trait...

    Text Solution

    |