| I. the first transgenic buffalo, Rosie produced milk which was human alpha-lactal bumin enriched. |
| II. restriction enzymes are used in isolation of DNA from other macro-molecules. |
| III. downstream processing is one of the steps of R-DNA technology. |
| IV. disarmed pathogen vectors are also used in transfer of R-DNA into the host. |
A) Statements (II) and (III)
B) Statements (III) and (IV)
C) Statements (I) and (III)
D) Statements (I) and (II)
Correct Answer: D
Solution :
Transgenic Rosiae is actually cow. It is first transgenic cow produced in 1997. Restriction enzymes cut the DNA at specific site. The separation of DNA is performed by gel electrophoresis.
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