GCD 3022 Ch 14-16,19 Questions With Complete Solutions
2-aminopurine Correct Answers base analog
5-bromouracil Correct Answers base analog
activator + inducer Correct Answers transcription occurs
activator + inhibitor Correct Answers transcription does not
occur
activators Correct Answers bind to DNA and increase
transcription (positive control)
Agouti mice experiment Correct Answers Agouti codes for
yellow fur, pregnant mice fed a diet that increases methylation
produced offspring w/ darker fur - methylation inhibited the
Agouti gene
alkyltransferase Correct Answers an enzyme that can remove
methyl or ethyl groups
Ames test Correct Answers uses a strain of salmonella that
cannot synthesize histidine, a second mutation may occur to
restore synthesizing ability - the test measure this rate
antisense RNA Correct Answers RNA complementary to
mRNA; can inhibit other proteins and prevent translation
ATP-dependent chromatin remodeling Correct Answers a
change in chromatin structure that alters the degree of
, compaction and/or the spacing and histone composition of the
nucleosomes. Requires ATP.
attenuation Correct Answers transcription begins but is
terminated before the entire mRNA is made
base excision repair Correct Answers DNA repair that first
excises modified bases and then replaces the entire nucleotide
both repression and attenuation can reduce the rate of
transcription ___ fold when tryptophan level is high Correct
Answers 600
breakpoint Correct Answers site of chromosomal breaking and
rejoining
catabolite repression of the lac operon Correct Answers E. coli
prefers to use glucose as its carbon source so it represses the lac
operon because its is a waster of energy to make product and
then use glucose instead
ChIP-Seq Correct Answers identifies DNA binding sites of
transcription factors, knows where nucleosomes are located,
where histone variants are found, and where covalent
modifications of histones occur
chromosome mutation Correct Answers change in chromosome
structure
2-aminopurine Correct Answers base analog
5-bromouracil Correct Answers base analog
activator + inducer Correct Answers transcription occurs
activator + inhibitor Correct Answers transcription does not
occur
activators Correct Answers bind to DNA and increase
transcription (positive control)
Agouti mice experiment Correct Answers Agouti codes for
yellow fur, pregnant mice fed a diet that increases methylation
produced offspring w/ darker fur - methylation inhibited the
Agouti gene
alkyltransferase Correct Answers an enzyme that can remove
methyl or ethyl groups
Ames test Correct Answers uses a strain of salmonella that
cannot synthesize histidine, a second mutation may occur to
restore synthesizing ability - the test measure this rate
antisense RNA Correct Answers RNA complementary to
mRNA; can inhibit other proteins and prevent translation
ATP-dependent chromatin remodeling Correct Answers a
change in chromatin structure that alters the degree of
, compaction and/or the spacing and histone composition of the
nucleosomes. Requires ATP.
attenuation Correct Answers transcription begins but is
terminated before the entire mRNA is made
base excision repair Correct Answers DNA repair that first
excises modified bases and then replaces the entire nucleotide
both repression and attenuation can reduce the rate of
transcription ___ fold when tryptophan level is high Correct
Answers 600
breakpoint Correct Answers site of chromosomal breaking and
rejoining
catabolite repression of the lac operon Correct Answers E. coli
prefers to use glucose as its carbon source so it represses the lac
operon because its is a waster of energy to make product and
then use glucose instead
ChIP-Seq Correct Answers identifies DNA binding sites of
transcription factors, knows where nucleosomes are located,
where histone variants are found, and where covalent
modifications of histones occur
chromosome mutation Correct Answers change in chromosome
structure
