Which describes an African butterfly species that exists in two strikingly different color patterns?
A) artificial selection
B) directional selection
C) stabilizing selection
D) disruptive selection
E) sexual selection
Ans: D) disruptive selection
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In roots auxins tend to ________ cell elongation, in stems they promote cell elongation.
A. promote B. not influence C. have little effect on D. not be a factor in E. inhibit
Which sea turtle has a diet of jellyfish?
a. Hawksbill b. Leatherback c. Green sea turtle d. Flatback sea turtle
A gene is best defined as
A) any random segment of DNA. B) a sequence of nucleotides in RNA that codes for a functional product. C) the RNA product of a transcribed section of DNA. D) three nucleotides that code for an amino acid. E) a sequence of nucleotides in DNA that codes for a functional product.
During which two times can the recipient accurately be described as "recombinant" due to the sequence of events portrayed in the figure?
A) during Times C and D B) during Times A and C C) during Times A and B D) during Times B and D