Question

In eukaryotic cells, the timing of the cell cycle is regulated by…

A)Centrioles
B)Cyclins
C)Spindle fibers
D)The nuclear envelope

Answer 1

Answer: B

Step-by-step explanation:In eukaryotic cells, the timing of the cell cycle is regulated by cyclins. They are a family of proteins that control the progression of cells through the cell cycle by activating cyclin-dependent kinase (Cdk) enzymes

Answer 2

B)Cyclins regulate the timing of cell cycle