The antibody-mediated immune response is most effective against ____

a. cancer cells
b. viral infected cells
c. bacteria circulating in the blood
d. normal flora
e. "self" cells


ANSWER: c

Biology & Microbiology

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Genes that encoded for polymerases, gyrases, ribosomal proteins, and other proteins essential to replication, transcription, and translation are present on

A) chromosomes. B) plasmids. C) chromosomes and plasmids. D) neither chromosomes nor plasmids.

Biology & Microbiology

Messenger RNA molecules that direct the synthesis of more than one polypeptide are said to be ________.

Fill in the blank(s) with the appropriate word(s).

Biology & Microbiology

The domination of the flowering plants over

the past 100 million years appear to be their coevolution with

a. dinosaurs. b. gymnosperms. c. insects. d. mammals. e. humans

Biology & Microbiology

For translation to take place, which of the following does NOT need to be present?

A. ribosome B. DNA C. rRNA D. mRNA E. tRNA-amino acid complex

Biology & Microbiology