Regulatory gene
A gene that regulates the expression of other genes.
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- Regulatory region
A region of a chromosome that controls gene expression. In terms of DNA, it is a regulatory sequence.
- Regulatory sequence
A sequence of bases in DNA that controls gene expression.
- Regulatory T cell
A T cell (T lymphocyte) that regulates the activity of another T cell, usually by suppressing its activity. This process can be beneficial or harmful. There are several different types of regulatory T cells.
- Regurgitation
A backward flowing. For example, vomiting is a regurgitation of food from the stomach, and the sloshing of blood back into the heart when a heart valve is incompetent is a regurgitation of blood.
- Rehab
An abbreviation for rehabilitation.