A gene that produces multiple effects is called
a. a multiple allele.
b. an autosome.
c. an epistatic gene.
d. a pleiotropic gene.
e. an incompletely dominant gene.
D
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A tiny loop of double-stranded DNA describes a
(a) bacterium. (b) DNA ligase. (c) plasmid. (d) antibiotic.
As a rough estimate, the species-area relationship derived from the theory of island biogeography predicts that a 90% reduction of habitat area results in a _____% loss of species diversity if no other factors are taken into account
A. 10 B. 15 C. 20 D. 25 E. 50
Riverine wetlands usually have a longer hydroperiod than basin wetlands
Indicate whether the statement is true or false
A weed that exhibits resistance to an herbicide ________
A) developed the resistance in response to the herbicide B) mutated when exposed to the herbicide C) inherited the gene that made it resistant to the herbicide D) is less likely to pass on the gene to the next generation