from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A threadlike linear strand of DNA and associated proteins in the nucleus of eukaryotic cells that carries the genes and functions in the transmission of hereditary information.
- n. A circular strand of DNA in bacteria that contains the hereditary information necessary for cell life.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A structure in the cell nucleus that contains DNA, histone protein, and other structural proteins.
from the GNU version of the Collaborative International Dictionary of English
- n. One of the minute bodies into which the chromatin of the nucleus is resolved during mitotic cell division; the idant of Weismann.
from The Century Dictionary and Cyclopedia
- n. In cytology, one of the definite segments or pieces of chromatin of the cell-nucleus.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a threadlike strand of DNA in the cell nucleus that carries the genes in a linear order
Genitourinary malformations in chromosome 22q11. 2 deletion.
JRA-like polyarthritis in chromosome 22q11. 2 deletion syndrome (DiGeorge anomalad/velocardiofacial syndrome/conotruncal anomaly face syndrome).
Lack of correlation between impaired T cell production, immunodeficiency, and other phenotypic features in chromosome 22q11. 2 deletion syndromes.
The doctor may also look at the blood for changes in chromosome 13.
Elizabeth Goldmuntz, MD: So you can see that the genetic basis of these disorders can encompass either complete change in chromosome number, like having a complete extra copy of a chromosome.
The research shows that, for the bearded dragon at least, the W chromosome is not necessary in producing a female.
The team suspects that a double dose of a particular gene on the Z chromosome is instead crucial for maleness, and that this gene is inactivated by high temperatures.
Do they match the variation in chromosome numbers?
So, adding some Y chromosome is supposed to be a good thing?
It starts out in the first chapter of incorrectly asserting that woman came from man (the Y chromosome is actually evolved from the X – which is proved in the fact that all life starts out female).