Yeast are ____
a. single-celled fungi
b. multicellular plants
c. single-celled plants
d. single-celled protists
e. multicellular fungi
ANSWER: a
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_____ is performed to detect genetic disorders and birth defects in a fetus
a. Carrier testing b. Prenatal testing c. Genetic screening d. Gene therapy e. Enzyme replacement therapy
The use of Salvarsan and Prontosil to treat microbial infections were early examples of
A. antibiotics. B. toxins. C. inhibitors. D. chemotherapy.
Which of the following is not a major class of growth factors?
A. Nucleic acids B. Amino acids C. Purines and pyrimidines D. Vitamins
Energy sources of photosynthesis reactions The energy source for the light reactions is _____; the energy source for the carbon reactions is ______.
a) sunlight, carbon dioxide b) sunlight, ATP c) ATP, oxygen d) Sunlight serves as the energy source for both sets of photosynthetic reactions.