1
NEET 2024 (Re-Examination)
MCQ (Single Correct Answer)
+4
-1

Given below are two statements :

Statement I : RNA interference takes place in all Eukaryotic organisms as method of cellular defense.

Statement II : RNAi involves the silencing of a specific mRNA due to a complementary single-stranded RNA molecule that binds and prevents translation of mRNA

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

A
Statement I is true but Statement II is false.
B
Statement I is false but Statement II is true.
C
Both Statement I and Statement II are true.
D
Both Statement I and Statement II are false.
2
NEET 2024
MCQ (Single Correct Answer)
+4
-1

The lactose present in the growth medium of bacteria is transported to the cell by the action of

A
Beta-galactosidase
B
Acetylase
C
Permease
D
Polymerase
3
NEET 2024
MCQ (Single Correct Answer)
+4
-1

A transcription unit in DNA is defined primarily by the three regions in DNA and these are with respect to upstream and down stream end;

A
Repressor, Operator gene, Structural gene
B
Structural gene, Transposons, Operator gene
C
Inducer, Repressor, Structural gene
D
Promotor, Structural gene, Terminator
4
NEET 2024
MCQ (Single Correct Answer)
+4
-1

Which of the following statement is correct regarding the process of replication in E.coli?

A
'The DNA dependent DNA polymerase catalyses polymerization in one direction that is $$3^{\prime} \rightarrow 5$$'

B
The DNA dependent RNA polymerase catalyses polymerization in one direction, that is $$5^{\prime} \rightarrow 3^{\prime}$$
C
The DNA dependent DNA polymerase catalyses polymerization in 5' $$\rightarrow$$ 3' as well as $$3^{\prime} \rightarrow 5^{\prime}$$ direction
D
The DNA dependent DNA polymerase catalyses polymerization in 5' $$\rightarrow$$ 3' direction
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