Hello there.
<span>Regulation of the cell cycle is dependent upon cyclins and cyclin-dependent kinases. The key(s) that allows a cell to progress beyond the restriction point is (are)
</span><span>c. cyclin A and Cdk2.
</span>
It would be “c” ; nitrogen fixation
A eukaryotic cell has a nucleus as well as membrane bound organelles such as the golgi apparatus, endoplasmic reticulum ect.
Is there more to this problem?
