NEET Previous Year Question
Read the following four statements (A to D) about certain mistakes in two of them.
(A) The first transgenic buffalo, Rosie produced milk which was human alpha-lactalbumin enriched.
(B) Restriction enzymes are used in isolation of DNA from other macromolecules.
(C) Downstream processing is one of the steps of rDNA technology.
(D) Disarmed pathogen vectors are also used in transfer of rDNA into the host.
Which of the two statements have mistakes?
Topic: NEET PYQ
Answer: D. Full step-by-step solution below.
- A(B) and (C)
- B(C) and (D)
- C(A) and (C)
- D(A) and (B)
Correct answer: D
Solution
(d) (A) – Rosie was the first transgenic cow, not buffalo.(B) – Restriction enzymes cut DNA; they are not used for DNA isolation.
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