Where are telomeres located?
a. within genes
b. in the middle of chromosomes
c. at the ends of a chromosome
d. at replication origins
Answer: c. at the ends of a chromosome
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The genes that influence alcoholism are ______________
A. alcohol dehydrogenase genes D. a combination of two of these genes B. aldehyde dehydrogenase genes E. unknown. C. MAOA genes
________ mutations decrease or eliminate gene activity
Fill in the blank(s) with correct word
When food distends the stomach, the hormone __________ is produced, which stimulates the gastric
glands. a. secretin b. gastrin c. cholecystokinin d. gastric inhibitory peptide e. lipoprotein lipase
Filopods harboring ________ are especially dangerous because the pathogens move about host tissues, even infecting the central nervous system, without being exposed to the immune system
a. Campylobacter jejuni b. Listeria monocytogenes c. Norwalk virus d. Yersinia enterocolitica