A typical bacterial cell is approximately the same size as which of the following?
a. a protein
b. a frog egg
c. a mitochondrion
d. a plant cell
c. a mitochondrion
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When sequencing DNA, the "sequencing depth" describes the:
A. sequence length (in bp) determined after alignment of overlapping sequences. B. number of times a specific nucleotide has been sequenced. C. number of contiguous sequences generated within a specific gene. D. percentage of single nucleotide polymorphisms within a gene. E. average size of DNA sequence generated in preparation for pyrosequencing.
The major vector of Rocky Mountain spotted fever in the western United States is
A. Rickettsia rickettsi. B. Rickettsia prowazeki. C. Borrelia burgdorferi. D. Dermacentor andersoni
Skeletal muscles contract in response to _____
a. acetylcholine (ACh) b. dopamine c. serotonin d. endorphins
Which of the following groups would be placed nearest the fungi in a phylogenetic tree based on DNA sequences?
a. cyanobacteria b. animals c. amoeba d. gymnosperms e. green algae