Asked by: Argiñe Exojoscience genetics
What are the arms of a chromosome called?
Last Updated: 4th February, 2020
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Consequently, what are the arms on a chromosome?
All human chromosomes have 2 arms - the p (short) arm and the q (long) arm - that are separated from each other only by a primary constriction, the centromere, the point at which the chromosome is attached to the spindle during cell division.
Also Know, why are chromosome arms called P and Q? q arm of a chromosome: The long arm of a chromosome. Origin of p and q as chromosome arms: The symbol "p" was chosen to designate the short arm because "p" stands for "petit", "small" in French. The letter "q" was selected to signify the long arm merely because "q" is the next letter in the alphabet.
Simply so, what are the acrocentric chromosomes?
Acrocentric chromosome: A chromosome in which the centromere is located quite near one end of the chromosome. Humans normally have five pairs of acrocentric chromosomes. Down syndrome is caused by an extra acrocentric chromosome (chromosome21).
What is a chromosome easy definition?
The chromosomes of a cell are in the cell nucleus. They carry the genetic information. Chromosomes are made up of DNA and protein combined as chromatin. Each chromosome contains many genes. Chromosomes come in pairs: one set from the mother; the other set from the father.