1
NEET 2026
MCQ (Single Correct Answer)
+4
-1
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Insertion of a foreign DNA at BamHI site in an E.coli cloning vector pBR322 results in the loss of antibiotic resistance towards:

A

Ampicillin and tetracycline

B

Ampicillin

C

Tetracycline

D

Gentamycin

2
NEET 2026
MCQ (Single Correct Answer)
+4
-1
Change Language

The following reaction depicts the activity of a particular class of enzymes :

NEET 2026 Biology - Biomolecules Question 1 English

Identify the enzymes class ' $E$ ' from the following options :

A

Transferases

B

Isomerases

C

Lyases

D

Ligases

3
NEET 2026
MCQ (Single Correct Answer)
+4
-1
Change Language

The specific receptors for neurotransmitters in a synapse are present on $\_\_\_\_$ .

A

Schwann cell

B

Pre-synaptic membrane

C

Myelin sheath

D

Post-synaptic membrane

4
NEET 2026
MCQ (Single Correct Answer)
+4
-1
Change Language

What is the probability of having children with 'O' blood group, where both mother and father are heterozygous for ' $\underline{\mathrm{A}}$ ' and ' $\underline{\mathrm{B}}$ ' blood group, respectively?

A

$25 \%$

B

$0 \%$

C

$75 \%$

D

$50 \%$