racheltwenty4

Some anti-cancer chemotherapy agents interfere withmicrotubules. How do they work?

A) They inhibit chromosome duplication

B) They inhibit cell growth

C) They inhibit the mitotic spindle

D) They prevent chromosome condensation

E) They activate cell death

4. Which of the following do NOT encode ribosomal proteins intheir genomes?

a) bacteria

b) viruses

c) eukaryotic cells

d) A and B

e) B and C

5. Viral envelopes can best be analyzed with which of thefollowing techniques?

a) use of 15N to label specific nucleotides

b) antibodies that recognize specific proteins not found in thehost membranes

c) DNA staining and visualization with the light microscope

d) immunofluorescent tagging of capsid proteins

6. What is the function of reverse transcriptase inretroviruses?

a) It hydrolyzes the host cell's DNA.

b) It converts host cell RNA into viral DNA.

c) It translates viral RNA into proteins.

d) It uses viral RNA as a template for making complementary RNAstrands.

e) It uses viral RNA as a template for DNA synthesis.

Opportunistic pathogens

A cause diseases at every opportunity.

B cause diseases occasionally.

C cause diseases in some individuals, but not others.

A complex of ribosome attached to a single strand of RNA is known as ?