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Assertion : Auxins help to prevent fruit...

Assertion : Auxins help to prevent fruits and leaves droo at early stages.
Reason : Auxins promote the abscission of older mature leaves and fruits.

A

If both assertion and reason are true and reason is the correct explanation of assertion

B

If both assertion and reason are true but reason is not the correct explanation of assertion

C

If assertion is true but reason is false

D

If both assertion and reason are false

Text Solution

Verified by Experts

The correct Answer is:
b
Auxin delays abscission of young leaves and fruits its effect is through nonformation of abscission zone below a leaf or fruit. Abscission zone cuts off nutrients and water supply. However, auxin promotes the abscission of mature or older leaves and fruits.
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Match column I with column II and select the correct option from the codes given below. {:(Column I,Column II),(A."Auxins",(i)"Breaking seed dormancy"),(B."Gibberellins",(ii)"Inducing fruit ripening"),(C."Cytokinins",(iii)"Formation of abscission layer"),(D."Ethylene",(iv)"Root initiation"),(,(v)"Chloroplast development in leaves"):}