Approximately how many molecules of ATP are produced from the complete oxidation of two molecules of glucose (C6H12O6) in cellular respiration?
A) 2
B) 4
C) 15
D) 38
E) 76
Ans: E) 76
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Siamese cats have enzymes that code for dark
fur color but are only active in cooler temperatures. Thus, the tips of a Siamese cat’s ears, feet, and tail are dark but not the warmer regions of its body core. This is an example of
a. pleiotropy. b. environmental effects. c. epistasis. d. incomplete dominance. e. co-dominance
Saccharomyces cerevisiae, which is used to make bread rise and to ferment grains, is a(n):
1.Ascomycete
2.Basidiomycete
3.Chytrid
4.Zygomycete
What do we mean when we use the terms monohybrid cross and dihybrid cross?
A) A monohybrid cross involves a single parent, whereas a dihybrid cross involves two parents. B) A dihybrid cross involves organisms that are heterozygous for two characters that are being studied, and a monohybrid cross involves organisms that are heterozygous for only one character being studied. C) A monohybrid cross is performed for one generation, whereas a dihybrid cross is performed for two generations. D) A monohybrid cross results in a 9:3:3:1 ratio whereas a dihybrid cross gives a 3:1 ratio.
One consequence of global warming is the melting of the glaciers and the resulting rise in sea levels. What will likely be the direct effect of this increase in sea levels on coral reefs?
A) Productivity will increase as the pure water from the glaciers dilutes the nutrients in the sea. B) Coral reefs in shallow waters will grow more rapidly due to added protection against harmful UV radiation. C) Coral reefs will be stimulated to grow faster due to the dilution of the seawater's salt content. D) Productivity will decrease as nutrients trapped in the glacial ice are released and spread throughout the oceans by currents. E) Coral reefs in deeper waters will die because insufficient light reaches them for photosynthesis.