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Letters p and q naming the two arms.
Also known as: Chromosome arm letters, Short and long arm designation
The cytogenomic notation naming a chromosome's short and long arms by two lower-case letters.
Names a chromosome's short and long arms in cytogenomic notation.
Contexts: Laboratory
Takes the short arm's letter from the French petit and the long arm's from the letter that follows it in the alphabet, so one letter is meaningful and the other is only sequential.
Contexts: Laboratory
A lower-case letter written after a chromosome number, one letter for the shorter arm and one for the longer.