Question

question 21 (1 point) the cells used as surrogates to multiply rdna molecules are called as mother cells electric cells host cells all above none of above

Explanation:

In recombinant - DNA technology, host cells are used as surrogates to multiply recombinant DNA (rDNA) molecules. They provide the necessary cellular machinery for replication, transcription, and translation of the rDNA. Mother cells is not a relevant term in this context, and electric cells are related to electricity and not to rDNA multiplication.

Answer:

C. Host cells