Which of the following would not inhibit a cell preparing to undergo mitosis?
A) chromosomal abnormalities
B) Cdc-activating kinase activity
C) Chk1 inhibtion of Cdc25
D) p21 inhibition of G1
E) environmental signals that no new cells are needed
B) Cdc-activating kinase activity
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The majority of energy resources taken from the sea are in the form of:
a. coal. b. energy from tides. c. gas and oil. d. energy from waves. e. thermal energy.
Which of these terms is NOT used as a nickname for a stop codon?
A) emerald B) amber C) opal D) ochre
A cytoskeleton is
A. composed of microtubules, microfilaments, and intermediate filaments. B. a structure that aids in the process of cell division. C. found in the cytoplasm of eukaryotic cells. D. a system of tracks used for intracellular transport. E. All of the answer choices are correct.
A plant cell contains ________ genomes and an animal cell contains ________ genomes.
A. 3; 2 B. 2; 3 C. 3; 3 D. 1; 1 E. 2; 2