Final exam: 12/4 Flashcards
the bacterial __ __ controls the creation of several enzymes through one promoter controlling several genes
lac operon
the bacterial lac operon controls the creation of several __ through one __ controlling several genes
enzymes, promoter
the lac operon is activated by __
lactose
the repressor protein in the operator binds to ___, but lactose binds to the ___ causing it to change shape
nucleotides, protein
the altered shape of the protein makes the repressor protein ___ and __ __ can then begin transcription
inactive, RNA polymerase
the lac operon has 3 genes that produce 3 different __
enzymes
is the lac operon type of gene regulation seen in eukaryotic cells?
no
___ genes control the activation and volume of other genes
transcription
__ remodeling can loosen or tighten DNA binding
chromatin
__ and ___ are two aspects of chromatin remodeling
acetylation, methylation
polypeptide modification can control gene ___
activity
polypeptide mutations that occur in regulatory regions can affect all cells (___) or only some (___)
germinal, somatic
mutations can cause polypeptides to stop to early (__) or cause a shift in the reading frame (___).
nonsense, frameshift
“___ ___” randomly insert blocks of DNA in polypeptide production region
jumping genes