Question

Transgenic animals have:

• A. Foreign DNA in some of the cells
• B. Foreign DNA in all of the cells
• C. Foreign RNA in some cells
• D. Both a and c

Answer 1

The correct option is B

Foreign DNA in all of the cells

Transgenic animals have foreign gene(s) incorporated into their genome or removed from their genome. This alteration in their genome occurs in the embryonic stage such that all tissues developing from it attain the same alteration. This results in an organism having altered DNA in all its cells.