Examlex
Regarding the trp operon,trpR- maps to a considerable distance from the structural genes.The mutation either inhibits the interaction with tryptophan or inhibits repressor formation entirely.In the presence of tryptophan in the medium,would you expect the trp operon to be transcriptionally active? Explain.
American Attitudes
The diverse beliefs, values, and perspectives held by the people of the United States.
September 11
A date marked by terrorist attacks in 2001 against the United States, mainly targeting the World Trade Center in New York City and the Pentagon.
Democratic Primaries
A series of electoral contests within the Democratic Party of the United States to select delegates who will nominate a candidate for presidential elections.
Barack Obama
The 44th President of the United States (2009–2017), notable for being the first African American to hold the office and his significant healthcare reform, the Affordable Care Act.
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