Home
Class 12
BIOLOGY
Discontinuous variations are...

Discontinuous variations are

A

mutation

B

essential features

C

acquired characters

D

noneessential features

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • HUMAN REPRODUCTION

    GRB PUBLICATION|Exercise All Questions|439 Videos

  • MICROBES IN HUMAN WELFARE

    GRB PUBLICATION|Exercise Assertion-Reason Type Questions|49 Videos

Similar Questions

Explore conceptually related problems

Assertion Darwin regarded discontinuous variations more important than continuous variations. Reason The survial of the fittest is a result of selection and proliferation of fittest organisms.

Darwin called discontinuous variations as

What was the name given to discontinuous variations by Darwin?

Give another name for discontinuous variations.

Read the following text and answer the following questions on the basis of the same: Mutation is sudden, discontinuous variation in genotype of an organism due to a change in its chromosomes and genes. Variation in DNA is a result of mutation. It is of three types : Gene mutation, chromosomal aberrations and gametic mutation. Gametic mutation is a change in chromosome number that brings effect on the phenotype, it is of two type - aneuploidy and euploidy. Mutation can be artificially produced by certain agents called mutagen. There are two major types of mutagens: physical and chemical mutagen. Change in sequence of nucleotide in DNA is known as ...... .

Read the following text and answer the following questions on the basis of the same: Mutation is sudden, discontinuous variation in genotype of an organism due to a change in its chromosomes and genes. Variation in DNA is a result of mutation. It is of three types : Gene mutation, chromosomal aberrations and gametic mutation. Gametic mutation is a change in chromosome number that brings effect on the phenotype, it is of two type - aneuploidy and euploidy. Mutation can be artificially produced by certain agents called mutagen. There are two major types of mutagens: physical and chemical mutagen. Substitution of a purine with another purine is known as ...... :

Read the following text and answer the following questions on the basis of the same: Mutation is sudden, discontinuous variation in genotype of an organism due to a change in its chromosomes and genes. Variation in DNA is a result of mutation. It is of three types : Gene mutation, chromosomal aberrations and gametic mutation. Gametic mutation is a change in chromosome number that brings effect on the phenotype, it is of two type - aneuploidy and euploidy. Mutation can be artificially produced by certain agents called mutagen. There are two major types of mutagens: physical and chemical mutagen. Which is the main category of mutation ?

Read the following text and answer the following questions on the basis of the same: Mutation is sudden, discontinuous variation in genotype of an organism due to a change in its chromosomes and genes. Variation in DNA is a result of mutation. It is of three types : Gene mutation, chromosomal aberrations and gametic mutation. Gametic mutation is a change in chromosome number that brings effect on the phenotype, it is of two type - aneuploidy and euploidy. Mutation can be artificially produced by certain agents called mutagen. There are two major types of mutagens: physical and chemical mutagen. Aneuploidy which occurs due to loss of a complete homologous pair of chromosomes is :

Read the following text and answer the following questions on the basis of the same: Mutation is sudden, discontinuous variation in genotype of an organism due to a change in its chromosomes and genes. Variation in DNA is a result of mutation. It is of three types : Gene mutation, chromosomal aberrations and gametic mutation. Gametic mutation is a change in chromosome number that brings effect on the phenotype, it is of two type - aneuploidy and euploidy. Mutation can be artificially produced by certain agents called mutagen. There are two major types of mutagens: physical and chemical mutagen. Give one word for the following: Type of mutation that arise due to change in a single base pair of DNA.

GRB PUBLICATION-MENDELIAN INHERITANCE-Multiple Choice Questions
  1. Which of the following is more likely to be heterozygous?

    Text Solution

    |

  2. Which of the following variations are temporary and have nothing to do...

    Text Solution

    |

  3. Discontinuous variations are

    Text Solution

    |

  4. Primary source of allelic variation is

    Text Solution

    |

  5. Variations occur mostly due to:

    Text Solution

    |

  6. A child has a single kidney since birth. This variation is

    Text Solution

    |

  7. Pedigree chart is used to identify:

    Text Solution

    |

  8. In a certain plant, red fruit ( R ) is dominant over yellow fruit ( r...

    Text Solution

    |

  9. When a cross is conducted between black feathered hen and a white feat...

    Text Solution

    |

  10. Which of the following repesents a test cross?

    Text Solution

    |

  11. In pigs, white coat (W) is dominant to black (w). Two white pigs are b...

    Text Solution

    |

  12. The term heterosis was first coined by:

    Text Solution

    |

  13. The term heterosis was first used by:

    Text Solution

    |

  14. In guinea pigs, black short hair (BBSS) is dominant over white long ha...

    Text Solution

    |

  15. In a dihybrid cross between RRYY and rryy parents, the number of RrYy ...

    Text Solution

    |

  16. A dihybrid test cross-yeilding a result of 1 : 1 : 1 : 1 ratio is indi...

    Text Solution

    |

  17. When a dihybrid cross is fit into a Punnett square with 16 boxes, the ...

    Text Solution

    |

  18. A condition where a certain gene is present in only a single copy in a...

    Text Solution

    |

  19. How many types of gametes are obtained from a plant of genotype TTRr?

    Text Solution

    |

  20. In a cross between a pure tall pea plant with green pod, and a pure sh...

    Text Solution

    |