Which of the following viruses are oncogenic?
A. parvovirus
B. human herpesvirus 4
C. papillomavirus
D. both human herpesvirus 4 and papillomavirus
E. both parvovirus and human herpesvirus 4
Answer: D
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The manta ray feeds on:
a. larger fish. b. surface and diving birds. c. squid. d. small fish and plankton. e. other rays.
Which fossil would be the oldest in a given strata and why? What will be an ideal response?
Which of the following layers forms the outer
covering of the gastrointestinal tract? a. serosa b. mucosa c. conjunctiva d. muscle layer e. submucosa
Which of the following does not occur during PCR?
A) Denaturation at high temperatures B) Synthesis of oligonucleotide primers C) Annealing of oligonucleotide primers D) Extension of primers by DNA polymerase E) Changes in the reaction temperature by a thermocycler