Gibberellins, ethylene and abscissic acid — task. Science State Board, Class 10.

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(Note: In some of the questions more than one answer in correct).

1. The active substance found in the fungus Gibberella fujikuroi is

Gibberellic acid
Auxins
Ethylene
Cytokinins

2. Identify the incorrect statements about ABA.

It promotes senescence in leaves by causing the loss of chlorophyll
It is a hormone that promotes abscission
It initiates the closure of stomata during water stress
It is a hormone that inhibits abscission

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