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Question

In genetic engineering, a DNA segment (gene) of interest is transferred to the host cell through a vector. Consider the following four agents in this regard and select the correct option about which one or more of these can be used as a vector/vectors?
(i) Bacterium
(ii) Plasmid
(iii) Plasmodium
(iv)
Cosmids
(v) Enzyme

  1. (ii) and (iv) only
  2. (i) and (ii) only
  3. (i), (iii) and (iv)
  4. (iv) only

A
(i) and (ii) only
B
(ii) and (iv) only
C
(i), (iii) and (iv)
D
(iv) only
Solution
Verified by Toppr

In molecular cloning, a vector is a DNA molecule used as a transport to artificially carry foreign genetic material into another cell, where it can be replicated and expressed. A vector containing foreign DNA is termed recombinant DNA. The four major types of vectors are plasmids, viral vectors, cosmids, and artificial chromosomes.
Therefore, the correct answer is option A.

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