Curt Doolittle updated his status.

(FB 1542412095 Timestamp)

—“While the primary players in gene expression â?? DNA, mRNA, ribosomes, and polymerases â?? have been known since the 1950s, how they interact during the cell cycle is still unclear.

In previous models, researchers thought that the rate of transcription (making a mRNA copy of DNA) and translation (turning mRNA into a sequence of amino acids) was limited by the amount of DNA and mRNA available in the cell.

But the new model, combined with existing experimental data, actually suggests that ribosomes and polymerases control the levels of proteins and mRNA in the cell.”—

( rather obvious. took the science test it. )