Which of the following is NOT good direct evidence that the cell-cycle control system is conserved through billions of years of divergent evolution?

Question

Quizplus · Accepted Answer

The fact that yeast cells have only one Cdk and humans have many Cdks does not directly provide evidence for the conservation of the cell-cycle control system through evolution. The other options (A, B,and C) all provide evidence for conservation, such as the ability to substitute for Cdk function between yeast and human cells and the similarity in amino acid sequences of cyclins between plants and humans.

Which of the Following Is NOT Good Direct Evidence That