if a particular operon encodes enzymes for making an essential amino acid and is regulated like the "trp" operon, then
answer
the amino acid acts as a corepressor
question
the functioning of enhancers is an example of
answer
transcriptional control of gene expression
question
which of the following is an example of post-transcriptional control of gene expression?
answer
the removal of introns and alternative splicing of exons
question
what would occur if the repressor of an inducible operon were mutated so it could not bind the operator?
answer
continuous transcription of the operon's genes
question
which statement about DNA in one of your brain cells is true?
Not true?
answer
TRUE: it is the same as the DNA in one of your liver cells.
NOT TRUE: Most of the DNA codes for protein, the majority of genes are likely to be transcribed, many genes are grouped into operon-like clusters
question
which of the following would not be true of cDNA produced using human brain tissue as the starting material?
answer
NOT TRUE: it was produced from pre-mRNA using reverse transcriptase
TRUE: it could be amplified by the polymerase chain reaction, it could be labeled and used as a probe to detect genes expressed in the brain, it lacks the introns of the pre-mRNA
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