Home
Class 12
BIOLOGY
An allele is dominant if it is expressed...

An allele is dominant if it is expressed in

A

Both homozygous and heterozygous states

B

Second generation

C

Heterozygous combination

D

Homozygous combination

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • GENETIC BASIS OF INHERITANCE

    DINESH PUBLICATION ENGLISH|Exercise Check your Grasp|30 Videos

  • GENETIC BASIS OF INHERITANCE

    DINESH PUBLICATION ENGLISH|Exercise Check your Grasp|30 Videos

  • FRUIT AND SEED DISPERSAL

    DINESH PUBLICATION ENGLISH|Exercise CHECK YOUR GRASP|10 Videos

  • GROWTH, REPAIR, REGENERATION AND AGEING

    DINESH PUBLICATION ENGLISH|Exercise Brain Teasers-VI[B]|6 Videos

Similar Questions

Explore conceptually related problems

When both alleles of a pair are fully expressed in heterozygotes, they are called

In a population of 100 cats , 36 were white and 64 were black . If the black allele is dominant over white allele , what is the frequency of black allele in this population of cats ?

Alleles are

Alleles are

Alleles are

Allele is the :-

Assertion :- In Neurospora each gene either dominant or recessive express it's effect. Reason :- Neurospora contain many alleles of a gene.

An allele is said to be recessive , when it expresses in

In halpoids, both recessive and dominant limitations express themselves because

Onion bulb shows white coloration instead of red - yellow pigmentation when alleles of another gene I is present. It is an example of (a) Recessive epistasis (b) Dominant epistasis (c) Dominant-recessive epistasis (d) Collaborative supplementary gene

DINESH PUBLICATION ENGLISH-GENETIC BASIS OF INHERITANCE-Revision Questions From Competitive Exams
  1. Gene P and Q are necessary for normal hearing. A deaf man marries a de...

    Text Solution

    |

  2. Nonallelic gene having similar phenotypic effect, interact to produce ...

    Text Solution

    |

  3. An allele is dominant if it is expressed in

    Text Solution

    |

  4. The child of 'O' group has 'B' group father .The genotype of the fathe...

    Text Solution

    |

  5. Percentage of heterozygous individuals obtained from selfing Rr indivi...

    Text Solution

    |

  6. Mendel's law of independent assortment can be demonstrated by

    Text Solution

    |

  7. Law of dominance-recessiveness is proved by:

    Text Solution

    |

  8. In a test cross, the individual is crossed with

    Text Solution

    |

  9. In a cross 45 tall and 14 dwarf plants were obtained. Genotypes of par...

    Text Solution

    |

  10. A yellow seeded true breeding Pea plant is crossed with green seeded t...

    Text Solution

    |

  11. RrYy yields gamete types

    Text Solution

    |

  12. Heterozygous organism for two genes shall be

    Text Solution

    |

  13. Mendel's principle of segregation was based on the separation of allel...

    Text Solution

    |

  14. Mendel studied inheritance of seven pairs of traits in pea which can h...

    Text Solution

    |

  15. A polygenic inheritance in human beings is

    Text Solution

    |

  16. A man of blood group A marries a woman of bloosd group AB. Which type ...

    Text Solution

    |

  17. F(2) generation is produced as a result of

    Text Solution

    |

  18. The process of removing stamen from flora buds during hybridisation ex...

    Text Solution

    |

  19. Hybrid are generally superior to parents due to

    Text Solution

    |

  20. In a dihybrid cross, if you get 9:3:3:1 ratio it denotes that

    Text Solution

    |