Question

answer this question plz its urgent​

Answer 1

Option 1)

\lambda phage

This is incorrect.

Option 2)

Ti plasmid

This is incorrect.

Option 3)

Retrovirus

This is correct.

Option 4)

pBR 322

This is incorrect

Answer 2

Answer:

OPTION C

Explanation:

Retro-viruses are the vectors commonly used to introduce a DNA Fragment.

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