In bacteria, the trp operon contains genes for the synthesis…
In bacteria, the trp operon contains genes for the synthesis of the amino acid tryptophan. When tryptophan is abundant, it acts as a corepressor, binding to the repressor protein and enabling it to bind to the operator, which stops transcription. What type of control is this?
Read DetailsForensic scientists collect samples from a crime scene and t…
Forensic scientists collect samples from a crime scene and three suspects, process, and produce the following DNA “fingerprint” images. In the “crime scene” lane, which fragment is the largest? Photo credit: National Human Genome Research Institute
Read DetailsOne of the common concerns regarding genetically modified or…
One of the common concerns regarding genetically modified organisms (GMOs) is that they pose a health risk to humans. What does the overwhelming consensus of peer-reviewed scientific studies and major scientific organizations say about the safety of currently available GMOs?
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