Home
Class 12
BIOLOGY
When two genes are situated very closed ...

When two genes are situated very closed to each other in a chromosome

A

The percentage of crossing over between them is very high

B

Hardly any cross over are detected

C

No crfossing over can take place between them

D

Only duble cross overs can take place between them

Text Solution

Verified by Experts

The correct Answer is:
B
(b) Frequency of crossing over is proportinal to the disce of gane.
Promotional Banner

Topper's Solved these Questions

  • MOLECULAR BASIS OF INHERITANCE

    ERRORLESS |Exercise Molecular Basis Of Inheritance|469 Videos

  • REPRODUCTION IN ORGANISMS

    ERRORLESS |Exercise Reproduction In Organisms|116 Videos

Similar Questions

Explore conceptually related problems

When two genes are situated very close to one another at a chromosome

Two gens situated very close on the chromosome show

How much linkage strength is present between two genes A & B, which are 6 cM far from each other in a chromosome ?

Gene when close together on a chromosome are known as

Genes located very close to one another on same chromosome tend to be tranmittied together and are caled as

Lenses Placed Very Close To Each Other

ERRORLESS -PRINCIPLES OF INHERITANCE AND VARIATION-Principles Of Inheritance And Variation
  1. If an inheritable mutation is observed in a population at high freque...

    Text Solution

    |

  2. The cause of Cat-cry syndrome is due to

    Text Solution

    |

  3. When two genes are situated very closed to each other in a chromosome

    Text Solution

    |

  4. Who is know as father of physiological genetics or father of biochemic...

    Text Solution

    |

  5. When a cluster of genes shows linkage behaviour they

    Text Solution

    |

  6. Which of the following best illustrates FEEDBACK in development

    Text Solution

    |

  7. Match the column I with column II and choose the correct options

    Text Solution

    |

  8. The fruit fly Drosophila melanogaster was found to be very suitable fo...

    Text Solution

    |

  9. The exhange of one part of a chromosome to the other part of some or a...

    Text Solution

    |

  10. If the number fo chromosomes in most body cells of a mammal is 40, the...

    Text Solution

    |

  11. How many nucleosomes are found in helical coil of 30 nm chromatin fibr...

    Text Solution

    |

  12. Biological marriage of one the following should be avoided Or Afte...

    Text Solution

    |

  13. Primary source of allelic variation is

    Text Solution

    |

  14. Presons with the following syndrome have a tendency of tall structure,...

    Text Solution

    |

  15. Recessive characteres are expressd

    Text Solution

    |

  16. Marriage between close relatives should be avoided because it induces...

    Text Solution

    |

  17. In a medico legal case of accidental interchange between two babies in...

    Text Solution

    |

  18. For finding the different types of gametes produced by genotype AaBb, ...

    Text Solution

    |

  19. Each chromosome at anaphase stage of bone marrow cell in our body has

    Text Solution

    |

  20. A child of blood group O cannot have parents of blood groups

    Text Solution

    |