Home
Class 11
BIOLOGY
In addition to auxinsmust be supplied to...

In addition to auxins________must be supplied to culture medium to obtain a good callus in plant tissue culture,

A

ABA

B

cytokinins

C

gibberellins

D

ethylene

Text Solution

Verified by Experts

The correct Answer is:
B
Cellus is an unorganised, undifferentiated mass of divign cells formed during tissue culture which requires borth auxins and cytokinins for its growth and differentiation. In callus, shoot regeneration is promoted by a cytokinin, such as BAP (Benzylaminopurine) and root regeneration is promoted by an auxin, such as NA A (Naphthalene acetic acid). Thus, shoot and root regenerations in callus are controlled by auxin-cytokinin balance. Usually, an excess of auxins promote root regeneration and that of cytokinins promote shoot regeneration.
Promotional Banner

Topper's Solved these Questions

  • PHOTOSYNTHESIS IN HIGHER PLANTS

    NCERT FINGERTIPS|Exercise Photosynthesis In Higher Plants|136 Videos

  • PLANT KINGDOM

    NCERT FINGERTIPS|Exercise Plant Kingdom|160 Videos

Similar Questions

Explore conceptually related problems

Fill in the places with appropriate word/ words. (a)A phase of growth which is maximum and fastest is ………. (b)Apical domince as expressed in dictyledonous plants is due to the presence of more……. In the apical buyd than in the lateral ones (c )In additon to lauxin a……. Must be supplied to culture medium to obtain a good callus in plant tissue culture (d)…………of a vegetative plants are the sites of photperiodic perception.

Tissue culture is

Father of plant tissue culture is

Who is known as father of plant tissue culture

The auxin commonly used in tissue culture is

Requirements of plant tissue culture are

To get haploid callus, one can culture

The major constituents of a plant tissue culture medium are

Haploid plant cultures are obtained from

To get haploid callus, one can culture:

NCERT FINGERTIPS-PLANT GROWTH AND DEVELOPMENT-Plant Growth And Development
  1. Natural cytokinins are synthesised in regions where rapid cell divisio...

    Text Solution

    |

  2. What would happen if you forget to add cytokinin to the culture medium...

    Text Solution

    |

  3. In addition to auxinsmust be supplied to culture medium to obtain a go...

    Text Solution

    |

  4. In plant tissue culture experiments, high auxin to cytokinin ratio fav...

    Text Solution

    |

  5. A plant hormone used for inducing morphogensis in plant tissue culture...

    Text Solution

    |

  6. The phenomenon pf apical dominace can be overcome by exogenous applica...

    Text Solution

    |

  7. Phytohormone A causes apical dominance while phytohormone B overcomes ...

    Text Solution

    |

  8. Hormone that promotes growth of lateral buds and has nagative effect o...

    Text Solution

    |

  9. Auxin and cytokinin are antagonistic in which of the following funtion...

    Text Solution

    |

  10. Induction of cell division activity and delay in senescence is caused ...

    Text Solution

    |

  11. Cytokinins help to produce all except

    Text Solution

    |

  12. Which among the following is not a function of cytokinis?

    Text Solution

    |

  13. Match column I with column II and select the correct option from the c...

    Text Solution

    |

  14. Read the given statements and select the correct option. Statement 1...

    Text Solution

    |

  15. Arifical ripening of fruits is caused by the treatment of

    Text Solution

    |

  16. If a rotten fruit gets mixed with unripe fruits, the unripe fruits wil...

    Text Solution

    |

  17. The most widely used compound as a source of C(2)H(4) is

    Text Solution

    |

  18. Read the given statements to identify the phytohormone that performs t...

    Text Solution

    |

  19. Gibberellins promote the formation of ul(A)flowers on genetically ul(B...

    Text Solution

    |

  20. A farmer grows cucumber plants in his field. He wants to increase the ...

    Text Solution

    |