"the original gene for the production of a human hormone was most likely removed from a
(1)chromosome
(2)ribosome
(3)mitochondrion
(4)cell membrane
"

Environmental impacts on evolution : mastery test

Guard cells control which event? the growth of plants capture of solar energy gas exchange in leaves water absorption in roots

What molecules will be best used to compare different species with the exact same sequence of amino acids? why would two species have the same protein even if the molecules in question is different? (hint: transcription to translation to protein).