Home
Class 12
BIOLOGY
Natural selection can eliminate a delete...

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

A

Recessive

B

Dominant

C

Co-dominant

D

Morphologically distinct

Text Solution

Verified by Experts

The correct Answer is:
B
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

A group of atoms can function as a ligand only when

Read the following statements and choose the correct option A. Increase in melanized moths after industrialization in Great Britain is a proof for natrual selection B. When more individuals of a population acquire a mean character value, it is called disruption C. Changes in allelic frequency in a population will lead to Hardly Weinberg equilibrium D. Genetic drift changes the existing gene ot allelic frequency in future generations

Bragg reflection can occur only when gamma le 2d .

A computer producing factory has only two plants T_(1) and T_(2). Plant T_(1) produces 20% and plant T_(2) produces 80% of the total computers produced in the factory turn out to be defective. It is known that P (computer turns out to be defective givent that it is produced in plant T_(1)) = 10 P ( computer turns out to be defective given that it is produced in plant T_(2)), where P (E) denotes the probability of an event E. A computer produced in the factory is randomly selected and it does not turn out to be defective. Then the probability that it is produced in plant T_(2) is

[A]: When doing genetics problems, firs de- cide the appropriate key and then determine the genotype and gametes for both parents. [R]: It is necessary to keep in mind that al- though an individual has two alleles for each trait, each gamete has only one allele for each trait

In the 1950s, there were hardly any mosquitoes Delhi. The use of the pesticide DDT on standing water killed their larve. It is believed that now there are mosquitoes because they evolved DDT resistance through the interaction of mutation and Natural Selection. Pointwise. state in a sequence how that could have happened.

Number of different arrangements which can be made out of the letters in the expansion of A^2B^3C^4 , when written in full , is ,

TRUEMAN BIOLOGY-PRINCIPLES OF INHERITANCE AND VARIATIONS -MCQs
  1. If two loci are 10 map units apart, assuming that no multiple cross-oe...

    Text Solution

    |

  2. Identify the correct number of gametes, genotypes and phenotypes respe...

    Text Solution

    |

  3. Natural selection can eliminate a deleterious allele, arising out of m...

    Text Solution

    |

  4. In Mirabilis, red flowered plant crossed with white flowered one resul...

    Text Solution

    |

  5. A female rat homozygous for a recessive X-linked mutation is mated to ...

    Text Solution

    |

  6. Study the pedigree given below and assign the type of inheritance of t...

    Text Solution

    |

  7. Erythroblastosis foetalis is caused when

    Text Solution

    |

  8. In Drosophilia the XXY condition leads to femaleness whereas in human ...

    Text Solution

    |

  9. If Mendel might have studied 7 pairs of characters in a plant with 10 ...

    Text Solution

    |

  10. First child of a normal pigmented couple is albino. The possibility of...

    Text Solution

    |

  11. In a hospital, on the same day-5 children were born to different coupl...

    Text Solution

    |

  12. If a plant with genotype R(1)R(2)R(0)R(0) produces potatoes of 240 gra...

    Text Solution

    |

  13. How many chromosomes would you find in a somatic cell of a female with...

    Text Solution

    |

  14. Slanting eyes, round face, mental retardation, epicanthus (eye folds) ...

    Text Solution

    |

  15. In a random mating population of 1 lac individuals-the frequency of th...

    Text Solution

    |

  16. In a random mating population of 1 lac individuals -75,000 individuals...

    Text Solution

    |

  17. A male human is heterozygous for autosomal genes A and B and is also h...

    Text Solution

    |

  18. Given below is a pedigree chart chowing the inheritance of a certain s...

    Text Solution

    |

  19. In which one of the following combinations (1-4) of the number of chro...

    Text Solution

    |

  20. In humans, red-green colour blindness is recessive and sex-linked, whi...

    Text Solution

    |