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Biotechnology and Its Applications question

2011 · Q45
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Biotechnology and Its Applications question

2011 · Q45

NEETBiologyBiotechnology and Its ApplicationsMCQ+4 / −1
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.
(B) Restriction enzymes are used in isolation of DNA from other macro-molecules
(C) Downstream processing is one of the steps of R-DNA technology
(D) Disarmed pathogen vectors are also used in transfer of R-DNA into the host
Which are the two statements having mistakes ?
  1. A
    Statements (B) and (C)
  2. B
    Statements (A) and (C)
  3. C
    Statements (A) and (B)
  4. D
    Statements (C) and (D)
View written solutionFree

Correct answer: C

In 1997, the first transgenic cow, Rosie, produced human protein enriched milk. The milk contained the human alpha-lactalbumin and was nutritionally a more balanced product for human babies than natural cow-milk. Isolation of DNA from other macromolecule is achieved by treating the bacterial cells/plant or animal tissue with enzymes such as lysozyme (bacteria), cellulase (plant cells), chitinase (fungus).

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