Which of the following characteristics of genes underlies the "geek theory of autism"?

a. Additive effects
b. Single-gene traits
c. Codominance
d. Incomplete dominance
e. None of the above


Ans: a. Additive effects

Biology & Microbiology

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The heavy line in the figure above illustrates the relationship between auxin concentration and cell growth in stem tissues. If the same range of concentrations were applied to lateral buds, what curve(s) would probably be produced?

A) I B) II C) III D) II or III E) I or III

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The passageway that transports oocytes from the ovary into the uterus is known as the

a. vagina b. uterus c. oviduct d. endometrium e. cervix

Biology & Microbiology

Which of the following taxa have greater richness at lower PET?

A) mammals B) reptiles C) birds D) amphibians

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Which of the following equations properly summarizes photosynthesis?

A) C6H12O6 + 6CO2 + sunlight ? 6O2 + 6H2O B) C6H12O6 + 6O2 + sunlight ? 6CO2 + 6H2O C) 6CO2 + 6H2O ? C6H12O6 + 6O2 + sunlight D) 6CO2 + 6H2O + sunlight ? C6H12O6 + 6O2

Biology & Microbiology