Gibberellins, ethylene and abscissic acid — task. Science CBSE Homework Assignments, Class 10.

Choose the best ones:

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

1. Which of these is true regarding Foolish seedling disease.

It involves the intranodal elongation in rice
It involves the internodal elongation in rice
It is caused by the fungus Gibberella fujikuroi
It is caused by the fungus Gibberella zeae

2. Identify the incorrect statements about ABA.

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

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