Which of the following characteristics do SNPs have?
A) variable numbers of tandem repeats, highly uniform in the population
B) small noteworthy transcribed regions, lethal genes
C) various nucleotides transcribed repeatedly, homogeneous
D) variable amino acid substitutions, highly heterogeneous
E) variable base sequences, variable in the population
E
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Why does overwatering a plant kill it?
A) Water does not have all the necessary minerals a plant needs to grow. B) Water neutralizes the pH of the soil. C) The roots are deprived of oxygen. D) Water supports the growth of root parasites. E) Water lowers the water potential of the roots.
The plural for genus is
a. genus. b. geni. c. genera. d. gena. e. genae.
Which lineage includes the tuatara as one of its only two living members?
a. Squamata b. Testudines c. Sphenodontia d. Amphibia
Two populations of plants look identical but their flowers are fertilized by different pollinators-one by a night-flying hummingbird moth, the other by honeybees. These two populations of flowers are examples of
A) identical gene pools. B) different species. C) identical evolutionary paths. D) the same species using different pollinators. E) groups within the same species.