AP Biology Questions with CORRECT Answers

AP Biology Questions with CORRECT Answers

Question:
a unit of gene regulation and transcription in bacterial DNA that consists of a promoter,
an operator, and one or more structural genes
Answer:
operon


Question:
a protein that binds to an operator and physically blocks RNA polymerase from binding
to a promoter site. is specific to the operator it binds.
Answer:
repressor


Question:
a gene that produces a repressor substance that inhibits an operator
Answer:
regulatory gene


Question:
A specific small molecule that inactivates the repressor in an operon.
Answer:
inducer


Question:
A protein that binds to DNA and stimulates transcription of a specific gene.
Answer:
activator


Question:
The expression of different sets of genes by cells with the same genome.
Answer:
differential gene expression

, Question:
Increase the level of transcription in certain cell types or in response to signals
Answer:
transcription factors


Question:
the study of changes in organisms caused by modification of gene expression rather
than alteration of the genetic code itself
Answer:
epigenetics


Question:
a type of eukaryotic gene regulation at the RNA-processing level in which different
mRNA molecules are produced from the same primary transcript, depending on which
RNA segments are treated as exons and which as introns
Answer:
Alternative RNA Splicing


Question:
a sequence within a primary transcript that remains in the RNA after RNA processing;
also refers to the region of DNA from which this sequence was transcribed
Answer:
Exon


Question:
the process by which information encoded in DNA directs the synthesis of proteins or, in
some cases, RNAs that are not translated into proteins and instead function as RNAs
Answer:
Gene Expression


Question:
a noncoding, intervening sequence within a primary transcript that is removed from the
transcript during RNA processing; also refers to the region of DNA from which this
sequence was transcribed
Answer:
Intron