1
AIPMT 2014
MCQ (Single Correct Answer)
+4
-1
Dr. F. went noted that if coleoptile tips were removed and placed on agar for one hour, the agar would produce a bending when placed on one side of freshly-cut coleoptile stumps. Of what significance is this experiment?
A
It made possible the isolation and exact identification of auxin.
B
It is the basis for quantitative determination of small amounts of growth-promoting substances.
C
It supports the hypothesis that 1AA is auxin.
D
It demonstrated polar movement of auxins.
2
AIPMT 2014
MCQ (Single Correct Answer)
+4
-1
Which one of the following growth regulators is known as 'stress hormone'?
A
Abscisic acid
B
Ethylene
C
GA3
D
Indole acetic acid
3
AIPMT 2014
MCQ (Single Correct Answer)
+4
-1
A few normal seedlings of tomato were kept in a dark room. After a few days they were found to have become white -coloured like albinos. Which of the following terms will you use to describe them?
A
Mutated
B
Embolised
C
Etiolated
D
Defoliated
4
AIPMT 2014
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Fructose is absorbed into the blood through mucosa cells of intesine by the process called
A
active transport
B
facilitated transport
C
simple diffusion
D
co-transport mechanism.
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Medical
NEET
Graduate Aptitude Test in Engineering
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CBSE
Class 12