chromosome
染色体,染色质,染色体组,染色单体
Related Words
Definitions
- 1
Genetics.
- : any of several threadlike bodies, consisting of chromatin, that carry the genes in a linear order: the human species has 23 pairs, designated 1 to 22 in order of decreasing size and X and Y for the female and male sex chromosomes respectively.
Synonyms & Antonyms
Examples
He named chromosomes in 1888, before their exact nature was well-known.
The scientists were especially interested in their telomeres—protective DNA sequences at the ends of chromosomes that act a bit like the caps on the ends of shoelaces.
Kelly experienced changes in his gut microbiome, his cognitive abilities slowed down, certain genes would turn off and on, and his chromosomes experienced structural changes.
In a study published last month, researchers at the Massachusetts Institute of Technology tracked an important part of the memory-making process at the molecular scale in engram cells’ chromosomes.
Each of Hsal’s cells carries 25 copies of its chromosome, which fragment and reassemble after a high radiation dosage.
And yet they proved to have the same virus fossils in the exact same chromosome amid billions of possibilities.
Carried distinctly through men, the Y chromosome only gives a portion of the entire mitochondrial DNA.
It's not delirium tremors and chromosome breakage and only a small number of users would be seriously harmed.
Once it was shown that women can have a single X chromosome (just as men can have two of them) that was abandoned as well.
What does it mean, really, if your 14-week-old fetus has a deletion on chromosome 12?
This X chromosome has also the factor for the development of red-eye pigment.
The accessory chromosome has been now observed in most of the great divisions of insects, except, as it happens, Lepidoptera.
Montgomery afterward showed that Henkings nucleolus was an accessory chromosome.
The chromosome situation in Protenor is a somewhat extreme case, inasmuch as one X chromosome is entirely lacking in the male.
On the basis of the chromosome theory the following explanation could be given of this numerical relation.