Home
Class 11
BIOLOGY
Root development is promoted by...

Root development is promoted by

A

Absic acid

B

Auxin

C

Gibberellin

D

Ethylene

Text Solution

Verified by Experts

The correct Answer is:
d
(d) Root development and root hair formation `C_(2)H_(4)`.
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • PHOTOSYNTHESIS IN HIGHER PLANTS

    ERRORLESS |Exercise Photosynthesis In Higher Plants|339 Videos

  • PLANT KINGDOM

    ERRORLESS |Exercise Plant Kingdom|553 Videos

Similar Questions

Explore conceptually related problems

Shoot regeneration is promoted by a . . . . . . . . . . . . whereas . . . . . . . . . . . . . regeneration is promoted by an auxin.

[A]: A correct concentration of auxin and cyto- kinin is required for the development of root and shoot in a callus. [B]: When the ratio of cytokinin to auxin is high, then only shoots develop. But when the ratio is low then only roots develop.

Knowledge Check

  • Roots develope from

    A
    Plumule
    B
    Radical
    C
    Stem
    D
    Leaf

  • Cell division in root nodules is promoted by ……… secreted by plant and ……….. Secreted by bacteria -

    A
    Auxin, Cytokinin
    B
    Cytokinin, Auxin
    C
    Auxin, Leg-haemoglobin
    D
    Nitrogenase, Leg-haemoglobin

  • Cell division in root nodules is promoted by _________ secreted by plant and ________ secreted by bacteria.

    A
    Auxin, Cytokinin
    B
    Cytokinin, Auxin
    C
    Auxin, Leghemoglobin
    D
    Nitrogenase, Leg hemoglobin

    • Similar Questions

    Explore conceptually related problems

    Assertion : A correct concentration of auxin and cytokinin is required for the development of root and shoot in callus. Reason: When the ratio of kinetin to auxin is high only shoot develop but when the ratio is low only roots develop

    Root hairs develop from-

    Root hairs develop from

    In the development of a root, the protoderm gives rise to the

    Mark the correct sequence of steps for the development of root nodules in legumes

    Home
    Profile