1
NEET 2019
MCQ (Single Correct Answer)
+4
-1
Change Language
Pinus seed cannot germinate and establish without fungal association. This is because :
A
it has very hard seed coat
B
Its seed contain inhibitors that prevent germination
C
its embryo is immature
D
it has obligate association with mycorrhizae
2
NEET 2019
MCQ (Single Correct Answer)
+4
-1
Change Language
What is the fate of the male gametes discharged in the synergid?
A
One fuses with the egg, other (s) fuse (s) with synergid nucleus.
B
One fuses with the egg and other fuses with central cell nuclei.
C
One fuses with the egg, other (s) degenerate (s) in the synergid.
D
All fuse with the egg.
3
NEET 2019
MCQ (Single Correct Answer)
+4
-1
Change Language
The frequency of recombination between gene pairs on the same chromosome as a measure of the distance between genes was explained by :
A
Alfred Sturtevant
B
Gregor J. Mendel
C
Sutton Boveri
D
T.H. Morgan
4
NEET 2019
MCQ (Single Correct Answer)
+4
-1
Change Language
A gene locus has two alleles A, a. If the frequency of dominant allele A is 0.4, then what will be the frequency of homozygous dominant, heterozygous and homozygous recessive individuals in the population?
A
0.16(AA); 0.48 (Aa); 0.36(aa)
B
0.16 (AA); 0.36(Aa); 0.48(aa)
C
0.36 (AA); 0.48 (Aa); 0.16 (aa)
D
0.16 (AA); 0.24 (Aa); 0.36 (aa)