The genetic information in viruses
A. is always DNA.
B. is always RNA.
C. is found in the nucleus of the virus.
D. can be replicated outside of a cell.
E. is either DNA or RNA.
Ans: E. is either DNA or RNA.
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A patient receiving hemodialysis began spiking a fever shortly after his treatment. Blood cultures were drawn and grew out the following gram-negative rods that were indole positive with varia-ble results for urea, nitrate reduction, and gelatin. The organism is most likely:
a. E. meningoseptica. b. E. brevis. c. CDC group O-1. d. Chryseobacterium spp.
Part of a chromosome lacking a centromere breaks away and does not reattach to another chromosome
a. Crossing-over b. Inversion c. Translocation d. Nondisjunction e. Deletion
Replication of the hepadnaviridae genome requires (RNA polymerase/reverse transcriptase).
What will be an ideal response?
Selective breeding results from programs designed to modify traits in domesticated species.
Answer the following statement true (T) or false (F)