1
RE-NEET 2026
MCQ (Single Correct Answer)
+4
-1
During PCR, primers bind to the DNA strands in the $\_\_\_\_$ step.
2
NEET 2026
MCQ (Single Correct Answer)
+4
-1
$$ \text { Match List I with List II: } $$
| $$ \text { List-I } $$ |
$$ \text { List-II } $$ |
||
|---|---|---|---|
| A. | Genetically modified organism | I. | Agrobacterium tumefaciens |
| B. | Thermostable DNA polymerase | II. | Bt cotton |
| C. | Ti plasmid | III. | Thermus aquaticus |
| D. | pBR322 | IV. | Escherichia coli |
3
NEET 2026
MCQ (Single Correct Answer)
+4
-1
Identify the correct sequence of steps in each cycle of Polymerase Chain Reaction :
4
NEET 2026
MCQ (Single Correct Answer)
+4
-1
Which of the following statements are not true regarding restriction endonucleases?
A. They are called molecular scissors.
B. These are the enzymes responsible for restricting the growth of bacteriophages in E. coli.
C. They cut the DNA only at the centre of the palindromic sites.
D. They remove nucleotides only from the ends of DNA fragments.
E. They recognise specific palindromic base-pair sequences.
Choose the answer from the options given below :
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