Question:
Which one of the following is considered as molecular scissors in modern biotechnology?
Which one of the following is considered as molecular scissors in modern biotechnology?
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Molecular scissors cut DNA at specific recognition sites.
Updated On: Nov 13, 2026
- Reverse transcriptases
- Taq polymerases
- Alkaline phosphatases
- Restriction endonucleases
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Verified By Collegedunia
The Correct Option is D
Solution and Explanation
Step 1: Understanding the Concept
Enzymes that cut DNA at specific sites are called restriction endonucleases.
Step 2: Compare
Reverse transcriptase makes DNA from RNA, Taq polymerase copies DNA in PCR, and alkaline phosphatase removes phosphate groups.
Step 3: Match
The molecular scissors are restriction endonucleases, option (D).
Final Answer:
Restriction endonucleases are the molecular scissors. \[ \boxed{\text{(D) }\text{Restriction endonucleases}} \]
Enzymes that cut DNA at specific sites are called restriction endonucleases.
Step 2: Compare
Reverse transcriptase makes DNA from RNA, Taq polymerase copies DNA in PCR, and alkaline phosphatase removes phosphate groups.
Step 3: Match
The molecular scissors are restriction endonucleases, option (D).
Final Answer:
Restriction endonucleases are the molecular scissors. \[ \boxed{\text{(D) }\text{Restriction endonucleases}} \]
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