1
NEET 2023
MCQ (Single Correct Answer)
+4
-1

In angiosperm, the haploid, diploid and triploid structures of a fertilized embryo sac sequentially are :

A
Antipodals, synergids, and primary endosperm nucleus
B
Synergids, Zygote and Primary endosperm nucleus
C
Synergids, antipodals and Polar nuclei
D
Synergids, Primary endosperm nucleus and zygote
2
NEET 2023
MCQ (Single Correct Answer)
+4
-1

Given below are two statements : One labelled as Assertion A and the other labelled as Reason R :

Assertion A : In gymnosperms the pollen grains are released from the microsporangium and carried by air currents.

Reason R : Air currents carry the pollen grains to the mouth of the archegonia where the male gametes are discharged and pollen tube is not formed.

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

A
Both A and R are true but R is NOT the current explanation of A
B
A is true but R is false
C
A is false but R is true
D
Both A and R are true and R is the correct explanation of A
3
NEET 2022 Phase 2
MCQ (Single Correct Answer)
+4
-1

The residual persistent part which forms the perisperm in the seeds of beet is

A
Integument
B
Calyx
C
Endosperm
D
Nucellus
4
NEET 2022 Phase 2
MCQ (Single Correct Answer)
+4
-1

In general the egg apparatus of embryo sac in angiosperm consists of

A
One egg cell, two synergids, two antipodal cells, two Polar nuclei
B
One egg cell, two synergids, three antipodal cells, two Polar nuclei
C
One egg cell, two synergids, two antipodal cells, three Polar nuclei
D
One egg cell, three synergids, two antipodal cells, two Polar nuclei
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