What determines the development of male or female sex organs in the human embryo?
a. environmental factors
b. genes on the X chromosome
c. genes on the Y chromosome
d. genes on both the X and Y chromosomes
e. neither the X nor Y chromosomes
ANSWER: c
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Deoxyribonucleic acid is used for: (choose all that apply)
A. transmission of information. B. storage of information. C. biological catalysis. D. energy storage. E. cell-to-cell communication.
The topic of ____, the idea of the fundamental unit of living organisms, raised several questions in Mendel's mind about inheritance
a. evolution b. cosmology c. cell theory d. DNA e. blood typing
Why is it very dangerous to eat wild mushrooms without proper training? What will be an ideal response?
Which of the following statements describes an
electron transfer chain? a. It generates energy from carbohydrates. b. Cells use it to dispose of excess electrons. c. It utilizes ATP to synthesize nutrients. d. It transfers energy, stepwise, from one compound to another. e. It requires activation by oxygen.