We consider the rare event of viral-induced in vivo transformation of host cells as a "failure" of the virus' replication cycle because
a) Viral genomes normally don't integrate into the host genome
b) Successful viral replication usually results in host cell death
c) Viruses need to keep the cell in G1 phase in order to make more viral particles
d) Viral replication in a cell effectively shuts down expression of all host genes
Answer: b) Successful viral replication usually results in host cell death
You might also like to view...
FISH analysis is useful for determining the
A) order of DNA fragments in a BAC. B) pattern of expression of a cloned gene. C) chromosomal location of a gene. D) map order of two closely linked genes.
The population of American bison used to number in the millions. Hunting and other problems greatly decreased the number of bison to about 1,000. Today, the numbers are recovering to estimates of more than 200,000 bison. This crash in the population of bison and recent recovery is an example of ______
A. gene flow B. genetic drift C. the bottleneck effect D. the founder effect
Which of the following statements concerning DNA is FALSE?
a. The structure of DNA can be described as a double helix. b. DNA is a polymer of nucleotides. c. Purines and pyrimidines are complementary. d. The sugar present in DNA is ribose. e. The two chains of DNA are antiparallel.
The appearance of gram-negative bacteria after addition of the decolorizing agent in the Gram stain.
a. Purple b. Red c. Colorless d. Brown