Home Biology Biotechnology Principles and Processes Statement Based Questions Read the following four statements (A-D) abo…
Biology Biotechnology Principles and Processes Statement Based Questions Single Correct MCQ
Published on: August 14, 2026

Read the following four statements (A-D) about certain mistakes in two of them.

( A) The first transgenic buffalo, Rosie produced milk which was human alpha-lactalbumin enriched.

A
and and
B
Restriction enzymes are used in isolation of DNA from other macromolecules. and
C
Downstream processing is one of the steps of rDNA technology. and
D
Disarmed pathogen vectors are also used in transfer of rDNA into the host. Which of the two statements have mistakes?

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The correct answer is:
D

Incorrect – Rosie was the first transgenic cow, not buffalo, and produced milk enriched with human α-lactalbumin.

Incorrect – Restriction enzymes cut DNA at specific sites; they are not used for isolation of DNA from other macromolecules.

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