1
NEET 2022 Phase 1
MCQ (Single Correct Answer)
+4
-1

Which one of the following never occurs during mitotic cell division?

A
Spindle fibres attach to kinetochores of chromosomes
B
Movement of centrioles towards opposite poles
C
Pairing of homologous chromosomes
D
Coiling and condensation of the chromatids
2
NEET 2022 Phase 1
MCQ (Single Correct Answer)
+4
-1

Given below are two statements:

Statement I : The primary CO2 acceptor in C4 plants is phosphoenolpyruvate and is found in the mesophyll cells.

Statement II : Mesophyll cells of C4 plants lack RuBisCo enzyme.

In the light of the above statements, choose the correct answer from the options given below:

A
Both Statement I and Statement II are correct
B
Both Statement I and Statement II are incorrect
C
Statement I is correct but Statement II is incorrect
D
Statement I is incorrect but Statement II is correct
3
NEET 2022 Phase 1
MCQ (Single Correct Answer)
+4
-1

Which one of the following is not true regarding the release of energy during ATP synthesis through chemiosmosis? It involves:

A
Breakdown of proton gradient
B
Breakdown of electron gradient
C
Movement of protons across the membrane to the stroma
D
Reduction of NADP to NADPH2 on the stroma side of the membrane
4
NEET 2022 Phase 1
MCQ (Single Correct Answer)
+4
-1

Habitat loss and fragmentation, over exploitation, alien species invasion and co-extinction are causes for :

A
Population explosion
B
Competition
C
Biodiversity loss
D
Natality
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