Examlex
Please define the following key terms
-Tsar Alexander II
Lac Operon
A genetic regulatory system found in bacteria and some viruses, controlling the metabolism of lactose.
Repressor Protein
A protein that binds to specific DNA sequences, preventing the transcription of certain genes.
Intracellular Level
Pertaining to processes or reactions occurring within a cell.
Translation
The process by which the nucleotide sequence of an mRNA is converted into the amino acid sequence of a protein.