Bright coloration in birds makes them stand out to predators. In female birds that sit on the nest, bright coloration is rare. This is likely the result of
A) artificial mutations.
B) natural selection.
C) stabilizing selection.
D) coevolution.
E) gene flow.
B
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The mutagens 2-aminopurine and 5-bromouracil are examples of
A) alkylating agents. B) nucleotide base analogs. C) chemicals reacting with DNA. D) None of the answers are correct.
If an adult man and woman, both weighing 160 pounds, were stranded on a desert island with
no food, which individual would survive the longest on their body stores?
a. the man b. the woman c. impossible to tell d. There would be no difference because they have the same body mass
Some algae are more closely related to plants than they are to other algae.
Answer the following statement true (T) or false (F)
The technique in which a non-functioning gene is replaced by a functioning gene in somatic cells is called gene:
a.replacement. b. medicine. c. fixing. d. therapy. e. alteration.