An ALDH2 allele results in slow alcohol metabolism, leading to an accumulation of acetaldehyde. Therefore, individuals with this allele tend to _____

a. consume more alcohol than typical social drinkers
b. be protected against alcoholism
c. become alcoholics at high rates
d. contain other alleles that protect against alcoholism
e. have parents who are alcoholics


b

Biology & Microbiology

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Which of the following is a waste product of nitrogen metabolism in some amniotes that is low enough

in toxicity that it can thus be excreted as a semisolid paste, reducing water loss?

a. nitric oxide b. uric acid c. squalene d. urea e. ammonium

Biology & Microbiology

A species that humans bring to an area where it did not previously inhabit is a(n) _____ species.

A. exotic B. native C. endemic D. existing E. endangered

Biology & Microbiology

Briefly discuss behavioral mechanisms that ectotherms can use to regulate their body temperature. What will be an ideal response?

Biology & Microbiology

Transcription factor proteins contain regions called ______ that have specific functions

Fill in the blank(s) with the appropriate word(s).

Biology & Microbiology