Which virus type results in the immediate onset of cancer phenotype upon infection of a host?
A) retrovirus B) acute transforming retrovirus
C) lentivirus D) adenovirus
Answer: B
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Water loss from a terrestrial insect's surface is minimal due to which of the following structures?
A) chitin and the cuticle B) tracheae and spiracles C) a proteinaceous epidermis D) a long alimentary canal
Which of the following structures can most easily be felt on the dorsum?
A) pedicle B) spinous process C) transverse process D) intervertebral disc E) body
During DNA replication, the lagging strand is synthesized by forming Okazaki fragments. The enzyme that joins Okazaki fragments together is
A. ligase. B. primase. C. DNA polymerase. D. ATP synthase. E. helicase.
If adenine bonds with guanine, and thymine bonds with cytosine, the DNA molecule would
a. be constricted along its entire length. b. bulge where cytosine bonds with thymine. c. constrict where adenine bonds with guanine. d. partially constrict and partially bulge along its length. e. be highly reactive.