NEET 2010 Biology question

Which one of the following is used as vector for cloning genes into higher organisms

(1)Salmonella typhimurium
(2)Rhizopus nigricans
(3)RetrovirusCorrect
(4)Baculovirus

Answer: (3)

Solution

Disarmed retroviruses can be used as vectors to deliver desirable genes into animal cells, because retroviruses naturally integrate their genetic material into the host genome (a property used in gene therapy and for making transgenic higher organisms). Hence (3) is the answer. Salmonella typhimurium (1)

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Question ID VK-090572