Among vertebrates, the major controlling agent of gene function is (are)?

a. enzymes.





b. adjacent cells.





c. hormones.





d. accumulation of end products such as toxins.





e. absence of precursor moleculesAmong vertebrates, the major controlling agent of gene function is (are)?
anything with a spine? that would be hormones- estrogen and testosterone to name a few in humans... good luck on your test.