Final exam: 12/4

Question 1

the bacterial __ __ controls the creation of several enzymes through one promoter controlling several genes

Answer 1

lac operon

Question 2

the bacterial lac operon controls the creation of several __ through one __ controlling several genes

Answer 2

enzymes, promoter

Question 3

the lac operon is activated by __

Answer 3

lactose

Question 4

the repressor protein in the operator binds to ___, but lactose binds to the ___ causing it to change shape

Answer 4

nucleotides, protein

Question 5

the altered shape of the protein makes the repressor protein ___ and __ __ can then begin transcription

Answer 5

inactive, RNA polymerase

Question 6

the lac operon has 3 genes that produce 3 different __

Answer 6

enzymes

Question 7

is the lac operon type of gene regulation seen in eukaryotic cells?

Answer 7

no

Question 8

___ genes control the activation and volume of other genes

Answer 8

transcription

Question 9

__ remodeling can loosen or tighten DNA binding

Answer 9

chromatin

Question 10

__ and ___ are two aspects of chromatin remodeling

Answer 10

acetylation, methylation

Question 11

polypeptide modification can control gene ___

Answer 11

activity

Question 12

polypeptide mutations that occur in regulatory regions can affect all cells (___) or only some (___)

Answer 12

germinal, somatic

Question 13

mutations can cause polypeptides to stop to early (__) or cause a shift in the reading frame (___).

Answer 13

nonsense, frameshift

Question 14

“___ ___” randomly insert blocks of DNA in polypeptide production region

Answer 14

jumping genes