Which of the following is the FIRST example of virus development in the complete absence of host cell contact?
a. production of long, thin tails by the Acidianus convivator virus ATV when released from the host cell
b. replication by transposition by bacteriophage Mu
c. segmentation of the genome by influenza A virus
d. cell transformation by polyomavirus SV40
Answer: A
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Which answer best describes energy flow in biological systems as described in the text?
a. glucose ? G3P ? NADH ? ATP b. bacteria ? archaea ? plants ? animals c. NAD+ ? NADH ? ADP ? ATP d. G3P ? glucose ? ATP ? NAD+ e. pyruvate oxidation ? glycolysis ? fermentation ? citric acid cycle
The particular set of alleles an individual carries is called the ________
a. gene expression b. genotype c. gene locus d. phenotype
Claviceps purpurea produces a(n) __________, which infests grain and has been important in many
historical events, as ingestion of infested grain milled into flour can cause hallucinations and even death. a. ergot b. smut c. rust d. brown rot e. mildew
Blood tests for cancer detect the presence of ____.?
a. cancer cells
b. DNA
c. carcinogens
d. tumor markers
e. enzymes