Which of the following statements concerning the cell cycle is FALSE?

a. The activity of Cdks increases and decreases during the cell cycle.
b. Cyclins fluctuate during the cell cycle.
c. Cdks are active only when they bind to cyclins.
d. The anaphase-promoting complex stimulates the separation of sister chromatids
e. M-Cdk inhibits mitosis


E

Biology & Microbiology

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Accommodation involves the ability to

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Ribosomes are organelles that are involved in ____

a. plasma membrane selectivity b. cellular energy production c. protein synthesis d. transport of materials e. DNA replication

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What might be the predominant lifestyle on Earth?

A. parasitism B. mutualism C. predation D. commensalism E. herbivory

Biology & Microbiology