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  • Read the following four statements (A-D) about certain mistakes in two of them (A) The first transgenic buffalo Rosie produced milk which was hum

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?

Option: 1

Statements (A) and (C)


Option: 2

Statements (A) and (B)


Option: 3

Statements (B) and (C)


Option: 4

Statements (C) and (D)


Answers (1)

best_answer

(A) Rosie is the first genetically modified cow whose milk is enriched with human alpha-lactalbumin.

(B) Restriction enzymes are used to isolate specific DNA fragments from an organism's DNA because these enzymes cut DNA at specific locations.

(C) Downstream processing is one of the steps in r-DNA technology. It involves the extraction and purification of the desired product.

(D) Elimination of pathogens such as Agrobacterium tumefaciens, phage viruses are also used to transfer r-DNA to the host.

Therefore, the correct answer is "(A) and (B)" Hence, option 2 is correct 

Posted by

Divya Prakash Singh

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