In which of the following ways are archaeans similar
to eukaryotic cells?
a. size
b. shape
c. histones
d. DNA polymerases
e. presence of operons
Answer: c
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A nucleotide is constituted of
a. a five carbon sugar, a nitrogenous acid, and a phosphate group. b. a six carbon sugar, a nitrogenous base, and a phosphate group. c. a five carbon sugar, a nitrogenous base, and a phosphate group. d. a six carbon sugar, a nitrogenous acid, and a phosphate group. e. a four carbon sugar, a nitrogenous acid, and a phosphate group
Carrie would like to observe the cilia on the surface of a live paramecium- a single-celled organism. The best device to do this would be a
A) magnifying glass B) electron microscope C) unaided eye D) light microscope E) dissecting microscope
The formation of offspring carrying genetic information from a single parent is called
A) asexual reproduction. B) sexual reproduction. C) regeneration. D) spontaneous generation. E) All of these
If scientists want to develop plants that can withstand cold conditions they would breed for the ability of the plant to increase solutes in cells.
Answer the following statement true (T) or false (F)