In Recombinant DNA Methods,the Term Vector Can Refer To

Question

In recombinant DNA methods,the term vector can refer to
A)the enzyme that cuts DNA into restriction fragments.
B)the sticky end of a DNA fragment.
C)a SNP marker.
D)a plasmid used to transfer DNA into a living cell.

Accepted Answer

In recombinant DNA methods, a vector is a plasmid or viral DNA that is used to introduce foreign DNA into a living cell. The vector is modified to include the desired foreign DNA and then introduced into the host cell, where it can be replicated and the foreign DNA can be expressed. Therefore, the best choice is D. The other choices are not accurate descriptions of a vector in recombinant DNA methods.