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

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
Change Language

The phenomenon of pleiotropism refers to

A
Presence of two alleles, each of the two genes controlling a single trait
B
A single gene affecting multiple phenotypic expression
C
More than two genes affecting a single character
D
Presence of several alleles of a single gene controlling a single crossover
3
NEET 2023
MCQ (Single Correct Answer)
+4
-1
Change Language

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

Assertion A : ATP is used at two steps in glycolysis.

Reason R : First ATP is used in converting glucose into glucose-6-phosphate and second ATP is used in conversion of fructose-6-phosphate into fructose-1, 6-diphosphate.

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 correct 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.
4
NEET 2023
MCQ (Single Correct Answer)
+4
-1
Change Language

Cellulose does not form blue colour with Iodine because

A
It is a helical molecule
B
It does not contain complex helices and hence cannot hold iodine molecules
C
It breaks down when iodine reacts with it
D
It is a disaccharide
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