1
NEET 2021
MCQ (Single Correct Answer)
+4
-1
A typical angiosperm embryo sac at maturity is :
A
8-nucleate and 8-celled
B
8-nucleate and 7-celled
C
7-nucleate and 8-celled
D
7-nucleate and 7-celled
2
NEET 2021
MCQ (Single Correct Answer)
+4
-1
Inspite of interspecific competition in nature, which mechanism the competing species might have evolved for their survival?
A
Predation
B
Resource partitioning
C
Competitive release
D
Mutualism
3
NEET 2021
MCQ (Single Correct Answer)
+4
-1
During the purification process for recombinant DNA technology, addition of chilled ethanol precipitates out :
A
Polysaccharides
B
RNA
C
DNA
D
Histones
4
NEET 2021
MCQ (Single Correct Answer)
+4
-1
DNA strands on a gel stained with ethidium bromide when viewed under UV radiation, appear as
A
Bright blue bands
B
Yellow bands
C
Bright orange bands
D
Dark red bands
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