Correctly rephrase the following famous quote from J. B. S. Haldane. "I would lay down my life in order to save two brothers or ________."
A. two grandsons or granddaughters
B. one son or daughter
C. three uncles
D. four cousins
E. two nephews and one son or daughter
Answer: E
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All the following photosynthetic pigments are found in brown algae except:
a. chlorophyll a. b. carotenoids. c. fucoxanthin. d. phycocyanin. e. chlorophyll c.
Why does reinforcement involve a strengthening of prezygotic, rather than postzygotic, isolation?
A. The rewards of postzygotic isolation are always much smaller than those of prezygotic isolation. B. Reinforcement occurs only rarely. C. Postzygotic isolation has only a minimal evolutionary impact. D. Alleles that prevent interbreeding are more likely to be inherited by viable, nonhybrid offspring than alleles that permit random mating. E. Assortative mating is uncommon.
Stages of the cell cycle (G1, S, G2) during which growth and DNA synthesis occur when the nucleus is not actively dividing.
What will be an ideal response?
Mutations can produce a polypeptide with increased function.
Answer the following statement true (T) or false (F)