The ____ are potentially pathogenic to humans
a. Archaea
b. Bacteria
c. Archaea and Bacteria
d. cyanobacteria
e. methanogens
ANSWER: b
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In Huntington disease, a child will typically develop the disease if one parent also has it. It is as common in boys as in girls. This disease is
A. X-linked recessive. B. autosomal dominant. C. autosomal recessive. D. X-linked dominant. E. pleiotropic.
Researchers tend to name genes based on what happens in their absence. The tinman gene in Drosophila results in
flies a. without hearts. b. with nonjointed legs. c. with a thick exoskeleton. d. with rust colored eyes. e. without brains.
Chitin is a polysaccharide with __________ atoms
attached to the glucose backbone. a. magnesium b. phosphorus c. potassium d. nitrogen e. sulfur
A reproductive strategy in which one individual has both testes and ovaries is called
A. hermaphroditism. B. sexual reproduction. C. parthenogenesis. D. fission.