Among the following, which one is commonly used as a restriction enzyme:
Correct answer: B. EcoR1
- A. pBR 101
- B. EcoR1
- C. EcoR3
- D. Both pBR 101 and EcoR3
Explanation
EcoRI is a restriction of endonuclease enzymes isolated from species. It is a restriction enzyme that cleaves DNA double helices into fragments at specific sites, and it is also a part of the restriction-modification system. Like all enzymes, a restriction enzyme works shape-to-shape matching. When it comes into contact with a DNA sequence with a shape that matches a part of the enzyme, called the recognition site, it wraps around the DNA and causes a break in both strands of the DNA molecule.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
About Biotechnology
Biotechnology in health care applies biological organisms, cells or enzymes to diagnose and treat disease. The subject includes recombinant DNA, genetically engineered insulin, vaccines, antibiotics, monoclonal antibodies, gene therapy and techniques such as polymerase chain reaction, while distinguishing therapeutic applications from agricultural and industrial biotechnology.
Practise Biotechnology
731 free Biotechnology MCQs from Biology, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Biology questions like this
Biology is on 8 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
More Biotechnology questions
Restriction endonucleases are naturally occurring enzymes of:
The phage commonly used as a vector in genetic engineering is?
The agent which separates the two strands of DNA in PCR is?
DNA Polymerase synthesize DNA from _:
DNA polymerase is a temperature-insensitive enzyme extracted from:
The method of producing thousands of seedlings is: