A cell's DNA molecules contain its genetic material. DNA molecules contain patterns for the production of
a. proteins.
b. amino acids.
c. phosphates and sugars.
d. four kinds of bases.
e. proteins, amino acids, phosphates, sugars, and four kinds of bases.
a
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Detritivores _____
A) recycle chemical elements directly back to primary consumers B) synthesize organic molecules that are used by primary producers C) convert organic materials from all trophic levels to inorganic compounds usable by primary producers D) secrete enzymes that convert the organic molecules of detritus into carbon dioxide and water E) may be autotrophic or heterotrophic
The conversion of gaseous nitrogen (N2) to ammonia (NH4+) occurs during ________.
A. ammonification B. nitrogen fixation C. photosynthesis D. nitrification E. denitrification
Gene transcription is induced by
a. A. b. B. c. C. d. D. e. none of these.
One of the findings of the human genome project is that humans vary by
a. introns. b. exons. c. SNPs. d. codons. e. deviant bases.