Differences in domesticated animals over relatively short periods of time most likely occur through
A. natural selection
B. experimental selection
C. artificial selection
D. adaptation
E. evolution
Answer: C
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An atom that is negatively charged because it has accepted an electron is a(n)
A. isomer. B. isotope. C. monomer. D. ion.
A cell with an extensive area of smooth endoplasmic reticulum is specialized to _____
A) play a role in storage B) synthesize large quantities of lipids C) actively export protein molecules D) import and export protein molecules
________ tRNAs are required to translate the DNA template sequence GTTACTCTGTGGGCT into amino acids.
A) Two B) Three C) Four D) Twenty
The reason why some individuals who inherit polydactyly (having an extra digit on the hand or feet) do not express the trait is due to
A. incomplete penetrance. B. gene linkage. C. pleiotropy. D. incomplete dominance. E. None of the answers are correct.