The ability of bacteria to transfer DNA from one individual to another in the same generation is called ________
a. vertical gene transfer
b. mitosis
c. meiosis
d. horizontal gene transfer
e. binary fission
d
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A microbial community containing very few species has a low species
a. abundance. b. composition. c. evenness. d. richness.
Researchers noted that only a few aphids changed color to green from their original red. This is an unusual observation among any animals. What research question came out of the observations?
A. Is the color shift of certain aphids due to genetics within a select species? B. Is the color shift of certain aphids due to changes in weather conditions? C. Is the color shift of certain aphids due to genetics or some other factor? D. Do other aphids change colors as they age? E. Will green aphids change their color to red, or remain green as they age?
Activated complement proteins
a. produce antigens. b. destroy invading cells. c. mark invading cells for phagocytosis. d. bind to antibodies. e. do more than one of these things
Only one vaccine currently used is partially protective against tuberculosis infection. That vaccine is:
A. CBG vaccine B. BCG vaccine C. BVG vaccine D. BTG vaccine