having a subterminal centromere
Acrocentric chromosomes are those with the centromere very close to one end, giving the chromosome a 'V' shaped appearance. The acrocentric chromosomes are numbers 13, 14, 15, 21 and 22. The short p arms are very short and usually have small round appendages on stalks, known as ' satellites'.
A chromosome whose centromere lies very near to one end.
chromosome structure in which the centromere is close to one end.
A chromosome with the centromere near one end and thus having one very short arm and one long arm.
used to describe chrompsomes which pair with a centromere located very close to one end giving a "V" shape rather than "X" of a central centromere pair. In the human, chromosomes 13,14,15,21 and 22 are acrocentric. In bovine all chromosomes are acrocentric. (More? Endocrine Notes)
ak-ro-SEN-trik A chromosome whose centromere divides the chromosome into a long arm and a short arm. 296
Acrocentric chromosomes are those with the centromere very close to one end, giving the chromosome a "V" shaped appearance. The short (p) arms are very short and usually have small dot-like appendages on stalks, known as "satellites". The acrocentric chromosomes are 13,14,15,21 & 22.
A type of chromosome with the centromeres near one end. The human acrocentric chromosomes (13,14,15,21, and 22) have satellited short arms that carry the genes for ribosomal RNA.
This a descriptive term for the chromosomes (including number 21) that have very short short arms usually with a small 'satellite' attached. It seems that apart from genes on the stalk of the satellite, there are few genes in this region of chromosomes 13-15 and 21, 22. The alternative term, metacentric, describes the other chromosomes where the centromere, the point where chromosome arms are held together, is nearer the middle of the chromosome. (see karyotype, photograph.)
Term used to describe a chromosome where the centromere is near one end and the short arm usually consists of satellite material.