1
NEET 2021
MCQ (Single Correct Answer)
+4
-1
Change Language
Which of the following is an incorrect statement?
A
Nuclear pores act as passages for proteins and RNA molecules in both directions between nucleus and cytoplsm
B
Mature sieve tube elements possess a conspicuous nucleus and usual cytoplasmic organelles
C
Microbodies are present both in plant and animal cells
D
The perinuclear space forms a barrier between the materials present inside the nucleus and that of the cytoplasm
2
NEET 2021
MCQ (Single Correct Answer)
+4
-1
Change Language
The term used for transfer of pollen grains from anthers of one plant to stigma of a different plant which, during pollination, brings genetically different types of pollen grains to stigma, is :
A
Cleistogamy
B
Xenogamy
C
Geitonogamy
D
Chasmogamy
3
NEET 2021
MCQ (Single Correct Answer)
+4
-1
Change Language
The factor that leads to Founder effect in a population is :
A
Genetic drift
B
Natural selection
C
Genetic recombination
D
Mutation
4
NEET 2021
MCQ (Single Correct Answer)
+4
-1
Change Language
The production of gametes by the parents, formation of zygotes, the F1 and F2 plants, can be understood from a diagram called :
A
Net square
B
Bullet square
C
Punch square
D
Punnett square
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