1
AIPMT 2009
MCQ (Single Correct Answer)
+4
-1
Which one of the following acids is a derivative of carotenoids?
A
Indole-3-acetic acid
B
Gibberellic acid
C
Abscisic acid
D
Indole butyric acid
2
AIPMT 2008
MCQ (Single Correct Answer)
+4
-1
Importance of day length in flowering of plants was first shown in
A
cotton
B
Petunia
C
Lemna
D
tobacco.
3
AIPMT 2008
MCQ (Single Correct Answer)
+4
-1
Senescence as an active developmental cellular process in growth and functioning of a flowering plant, is indicated in
A
annul plants
B
floral parts
C
vessels and tracheid differentiation leaf abscission.
D
leaf abscission.
4
AIPMT 2007
MCQ (Single Correct Answer)
+4
-1
The wavelength of light absorbed by Pr form of phytochrome is
A
680 nm
B
720 nm
C
620 nm
D
640 nm.
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