1
MHT CET (PCB) 2025 9th April Morning Shift
MCQ (Single Correct Answer)
+1
-0

If dark period is interrupted by a flash of red light of 660 nm , then SDP will not flower. But if it is immediately followed by _________ then SDP will flower.

A

far red light of 660 nm

B

far red light of 730 nm

C

red light of 660 nm

D

red light of 730 nm

2
MHT CET (PCB) 2025 9th April Morning Shift
MCQ (Single Correct Answer)
+1
-0

The figure shows photoperiodism. Identify its correct explanation from the following.

MHT CET (PCB) 2025 9th April Morning Shift Biology - Plant Growth and Development Question 1 English
A

Short day plants flower

B

Short day plants do not flower

C

Long day plants do not flower

D

Day neutral plants do not flower

3
MHT CET (PCB) 2025 9th April Morning Shift
MCQ (Single Correct Answer)
+1
-0

Which one of the following represents qualitative growth in plants?

A

Increase in dry weight

B

Increase in number of cells

C

Differentiation of cells

D

Increase in volume

4
MHT CET (PCB) 2025 9th April Morning Shift
MCQ (Single Correct Answer)
+1
-0

Which one of the following plant hormones does NOT prevent abscission in plants?

A

Auxin

B

Gibberellin

C

Cytokinin

D

Ethylene

MHT CET (Biology) Subjects

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