Be able to identify an example of directional selection.

What will be an ideal response?


a mouse population that is originally white in color to becoming darker in color after several generations

Biology & Microbiology

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"Glucose sparing" is brought about by

a. epinephrine. b. norepinephrine. c. aldosterone. d. cortisol. e. growth hormone.

Biology & Microbiology

Epidermal cells secrete a ____ to reduce water loss

a. trichome b. cuticle c. oily substance d. upper epidermis e. stipules

Biology & Microbiology

Which of the following is not a feature of reverse transcriptase?

A. It can create double-stranded DNA from RNA. B. It causes the high mutation rate of HIV. C. It can incorporate DNA into the host cell's genome. D. It is very error-prone.

Biology & Microbiology

The approximate diameter of an actin filament is

a. 8-12 nm. b. 7 nm. c. 25 nm. d. 5 mm.

Biology & Microbiology