<P> Two key classes of regulatory molecules , cyclins and cyclin - dependent kinases ( CDKs ) , determine a cell 's progress through the cell cycle . Leland H. Hartwell , R. Timothy Hunt , and Paul M. Nurse won the 2001 Nobel Prize in Physiology or Medicine for their discovery of these central molecules . Many of the genes encoding cyclins and CDKs are conserved among all eukaryotes , but in general more complex organisms have more elaborate cell cycle control systems that incorporate more individual components . Many of the relevant genes were first identified by studying yeast , especially Saccharomyces cerevisiae ; genetic nomenclature in yeast dubs many of these genes cdc ( for `` cell division cycle '' ) followed by an identifying number , e.g. cdc25 or cdc20 . </P>
<P> Two key classes of regulatory molecules , cyclins and cyclin - dependent kinases ( CDKs ) , determine a cell 's progress through the cell cycle . Leland H. Hartwell , R. Timothy Hunt , and Paul M. Nurse won the 2001 Nobel Prize in Physiology or Medicine for their discovery of these central molecules . Many of the genes encoding cyclins and CDKs are conserved among all eukaryotes , but in general more complex organisms have more elaborate cell cycle control systems that incorporate more individual components . Many of the relevant genes were first identified by studying yeast , especially Saccharomyces cerevisiae ; genetic nomenclature in yeast dubs many of these genes cdc ( for `` cell division cycle '' ) followed by an identifying number , e.g. cdc25 or cdc20 . </P>
what regulates the timing of the cell cycle in eukaryotes
what regulates the timing of the cell cycle in eukaryotes
Two key classes of regulatory molecules , cyclins and cyclin - dependent kinases ( CDKs )
Two key classes of regulatory molecules , cyclins and cyclin - dependent kinases ( CDKs )