Homework SourseBIO cell and molecular bio ANSWER ALL 1 a cell can remember
BIO: cell and molecular bio
ANSWER ALL
1 a cell can \"remember\" the pattern of gene expression specific to its type though epigenetic inheritance. Which is the following is NOT an example of epigenetic inheritance?
A the inheritance of a single nucleotide mutation in a gene
B the inheritance of methylation patterns in DNA
C the inheritance of a regulatory protein that activates its own transcription
D the inheritance of patterns of chromosome condensation
2 which of the following statements accurately describes the expression of the repressor protein of the tryptophan operon?
A the gene for the tryptophan repressor is turned on in response to high levels of tryptophan in the cell
B the gene for the tryptophan repressor is expressed constitutively
C the gene for the tryptophan repressor is turned off in response to high levels of tryptophan in the cell
BIO: cell and molecular bio
ANSWER ALL
1 a cell can \"remember\" the pattern of gene expression specific to its type though epigenetic inheritance. Which is the following is NOT an example of epigenetic inheritance?
A the inheritance of a single nucleotide mutation in a gene
B the inheritance of methylation patterns in DNA
C the inheritance of a regulatory protein that activates its own transcription
D the inheritance of patterns of chromosome condensation
2 which of the following statements accurately describes the expression of the repressor protein of the tryptophan operon?
A the gene for the tryptophan repressor is turned on in response to high levels of tryptophan in the cell
B the gene for the tryptophan repressor is expressed constitutively
C the gene for the tryptophan repressor is turned off in response to high levels of tryptophan in the cell
ANSWER ALL
1 a cell can \"remember\" the pattern of gene expression specific to its type though epigenetic inheritance. Which is the following is NOT an example of epigenetic inheritance?
A the inheritance of a single nucleotide mutation in a gene
B the inheritance of methylation patterns in DNA
C the inheritance of a regulatory protein that activates its own transcription
D the inheritance of patterns of chromosome condensation
2 which of the following statements accurately describes the expression of the repressor protein of the tryptophan operon?
A the gene for the tryptophan repressor is turned on in response to high levels of tryptophan in the cell
B the gene for the tryptophan repressor is expressed constitutively
C the gene for the tryptophan repressor is turned off in response to high levels of tryptophan in the cell
1 a cell can \"remember\" the pattern of gene expression specific to its type though epigenetic inheritance. Which is the following is NOT an example of epigenetic inheritance?
A the inheritance of a single nucleotide mutation in a gene
B the inheritance of methylation patterns in DNA
C the inheritance of a regulatory protein that activates its own transcription
D the inheritance of patterns of chromosome condensation
2 which of the following statements accurately describes the expression of the repressor protein of the tryptophan operon?
A the gene for the tryptophan repressor is turned on in response to high levels of tryptophan in the cell
B the gene for the tryptophan repressor is expressed constitutively
C the gene for the tryptophan repressor is turned off in response to high levels of tryptophan in the cell
Solution
1.Correct answer is option A the inheritance of a single nucleotide mutation in a gene.
2. Correct answer is option B. the gene for the tryptophan repressor is expressed constitutively.
trp repressor is produced constitutively in low levels. when tryptophan is present, the repressor binds to tryptophan and changes conformation of the repressor to bind to the operator.
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