Q97 / 200 · MHT CET - Medical 2026 (25 April Shift 1) · Biology
Restriction enzymes are
- Aused for artificial DNA synthesis.
- Bused for sealing the DNA fragments in r DNA technology.
- Correct answerCsynthesized by bacteria as a part of their defence mechanism.
- Dpresent in eukaryotic cell for degradation of DNA during infection.
Solution
Restriction enzymes are synthesized by bacteria as a part of their defense mechanism against bacteriophages. They recognize specific nucleotide sequences and cleave the foreign viral DNA, thus protecting the bacterial cell from infection.
DNA ligase is the enzyme used for sealing DNA fragments in recombinant DNA technology.
DNA polymerase is used for DNA synthesis.
Restriction enzymes are naturally found in prokaryotes, not in eukaryotic cells.
Answer: synthesized by bacteria as a part of their defence mechanism.
DNA ligase is the enzyme used for sealing DNA fragments in recombinant DNA technology.
DNA polymerase is used for DNA synthesis.
Restriction enzymes are naturally found in prokaryotes, not in eukaryotic cells.
Answer: synthesized by bacteria as a part of their defence mechanism.
Hence, the correct answer is option: 'C'.