Question

Vectors are:

A. DNA molecules used to carry foreign DNA fragments into bacteria or other cells B. DNA molecules that can be joined with DNA fragments that are to be cloned C. RNA molecules that can be joined with DNA fragments that are to be cloned D. large eukaryotic chromosomes

Answer 1

The answer is most likely to be A, because Vectors are molecules that deliver pathogen or other materials from one place to another! Vectors do not cause the disease itself, instead vectors spread the infection by conveying pathogen from one place to another!