1
NEET 2021
MCQ (Single Correct Answer)
+4
-1
In the equation GPP - R = NPP

R represents :
A
Respiration losses
B
Radiant energy
C
Retardation factor
D
Environmental factor
2
NEET 2021
MCQ (Single Correct Answer)
+4
-1
When the centromere is situated in the middle of two equal arms of chromosomes, the chromosome is referred as :
A
Acrocentric
B
Metacentric
C
Telocentric
D
Sub-metacentric
3
NEET 2021
MCQ (Single Correct Answer)
+4
-1
The plant hormone used to destroy weeds in a field
A
IBA
B
IAA
C
NAA
D
2, 4-D
4
NEET 2021
MCQ (Single Correct Answer)
+4
-1
Which of the following are not secondary metabolites in plants?
A
Rubber, gums
B
Morphine, codeine
C
Amino acids, glucose
D
Vinblastin, curcumin
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