Because DNA:DNA hybridization reveals subtle differences in genes, it is useful for differentiating organisms from different
A) domains.
B) families.
C) orders.
D) strains or species.
Answer: D
Biology & Microbiology
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Inactivated immunizing agents are prepared by treatment with
A. alcohol. B. phenol. C. formalin. D. histamine.
Biology & Microbiology
With ____ selection(s), the allele frequency
will shift in a consistent direction.
a. directional b. stabilizing c. disruptive d. frequent e. mutational
Biology & Microbiology
The letter “E” in the above figure represents the
a. style. b. ovary. c. stigma. d. anther. e. filament.
Biology & Microbiology
Before mitosis, chromosomes are visible only as
A) microtubules. B) matrix. C) chromatin. D) spindle fibers.
Biology & Microbiology