The majority of prokaryotic DNA is arrayed in:
A. multiple circular chromosomes.
B. a single circular chromosome.
C. a single linear chromosome.
D. multiple linear chromosomes.
B
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Fluorescent antibodies can be used to separate mixtures of cells into relatively pure populations with a fluorescence cytometer
Indicate whether the statement is true or false.
Which of the following represents a virus family name?
A. Herpes simplex virus B. Picornavirus C. Hepatitis B virus D. Enterovirus E. Herpesviridae
Acquired characteristics
A. are passed on to the offspring. B. are caused by mutations. C. result in natural selection. D. are obtained after fertilization.
The apical complex in the apicomplexans ________.
A. is located at one end of the cell B. contains mitochondria C. is located at one end of the cell and aids in penetration of host cells D. aids in penetration of host cells