Positive selection may refer to:
- Positive selection as an event during thymocyte maturation
- Directional selection, a particular mode or mechanism of natural selection.
Famous quotes containing the words positive and/or selection:
“Nurturing competence, the food of self-esteem, comes from acknowledging and appreciating the positive contributions your children make. By catching our kids doing things right, we bring out the good that is already there.”
—Stephanie Martson (20th century)
“When you consider the radiance, that it does not withhold
itself but pours its abundance without selection into every
nook and cranny”
—Archie Randolph Ammons (b. 1926)