Examlex
Why is it that the presence of lactose positively affects transcription of the lac genes while tryptophan negatively affects transcription of the trp genes?
Presidential Election
A process in countries with a presidential system where citizens vote to elect the President of the country, usually through direct or indirect means.
Richard Nixon
The 37th President of the United States, whose tenure is marked by significant foreign diplomacy and the Watergate scandal leading to his resignation.
First President
Refers to the inaugural leader of a republic or a nation's head of state, often noted for setting precedents in governance.
California
is a state located on the west coast of the United States, known for its diverse geography, climate, and the entertainment industry.
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