Where is DNA found in prokaryotes?
a. only in the nucleolus
b. only in plasmids
c. in the nucleolus and plasmids
d. in the nucleoid and plasmids
Answer: d. in the nucleoid and plasmids
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Over time, the carbon isotope 14C decays into
a. 12C. b. 14N. c. 12N. d. 13C. e. 12B.
If an experimenter interferes with the
mesoderm in an egg, which of the following systems would NOT be affected by the experimenter?
a. circulatory system b. muscular system c. reproductive system d. integumentary system e. excretory system
The stramenopiles include the
a. oomycotes. b. brown algae. c. Sargassum and Saprolegnia d. diatoms. e. all of these.
The greatest number of AIDS cases has occurred in
a. North America. b. The Caribbean Islands. c. Latin America. d. Sub-Saharan Africa. e. East Asia.