Which of the following events increases variability in a population?
a. genetic drift
b. bottleneck
c. stabilizing selection
d. gene flow
d
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In agarose gel electrophoresis, DNA is visualized by ____
a. staining the gel with an agarose-binding dye so the gel, but not the DNA bands, fluoresces under UV light b. staining the DNA with a DNA-binging dye that fluoresces under natural light c. staining the DNA with X-gal so that the DNA bands appear blue d. staining the gel with a DNA-binding dye that fluoresces under UV light e. staining the gel with a DNA-binding dye that fluoresces under natural light
Substrates for biosynthesis are generated from catabolic reactions microbes use the same enzymes or different ones?
What will be an ideal response?
What kind of entity is a lichen?
A) an association between a fungus and a brown alga B) an association between a multicellular protist related to the brown algae and a bacterium C) an association between a fungus and cyanobacteria or green algae D) an association between a bryophyte and a fungus
Kineococcus radiotolerans is an example of which of the following?
A. an extremophile B. a barophile C. a mesophile D. a psychrophile