Promoter
In molecular biology, a site on DNA to which the enzyme RNA polymerase can bind to initiate the transcription of DNA into RNA.
Read Also:
- Pronation
Rotation of the forearm and hand so that the palm is down (and the corresponding movement of the foot and leg with the sole down), as opposed to supination. For a more complete listing of terms used in medicine for spatial orientation, please see the entry to “Anatomic Orientation Terms”.
- Pronator foot type
A type of foot that rolls far inward during the weight-bearing phase of the stride. This type of foot is characterized by a very low or flat arch. Heavier people often have feet of this type.
- Prone
With the front (or ventral) surface downward. To lie prone is to lie face downward. Prone is as opposed to supine. For a more complete listing of terms used in medicine for spatial orientation, please see the entry to “Anatomic Orientation Terms”.
- Prontosil
The first sulfa drug to be discovered. Largely of historic interest today. The discovery was made by the great German physician and chemist Gerhard Domagk (1895-1964). In 1925 Domagk was named Lecturer in Pathologic Anatomy (pathology) in the University of Munster (where he spend most of his long career). However, from 1927 to 1929 he […]
- Prophase chromosome
A chromosome at the prophase stage in the cell cycle, before metaphase (when a chromosome is most highly condensed). The chromosomes in prophase are distended and often tangled like a ball of twine within the nucleus of the cell. However, when fine chromosomal details are important, prophase chromosomes are frequently selected for high resolution chromosome […]