What is chromosome?

  • (noun): A threadlike body in the cell nucleus that carries the genes in a linear order.


A chromosome is an organized structure of DNA and protein found in cells. It is a single piece of coiled DNA containing many genes, regulatory elements and other nucleotide sequences. Chromosomes also contain DNA-bound proteins, which serve to package the DNA and control its functions. Chromosomal DNA encodes most or all of an organism's genetic information; some species also contain plasmids or other extrachromosomal genetic elements.

Read more about Chromosome.

Some articles on chromosome:

Chromosome Conformation Capture
... Chromosome conformation capture, or 3C, is a high-throughput molecular biology technique used to analyze the organization of chromosomes in a cell's natural state ... Studying the structural properties and spatial organization of chromosomes is important for the understanding and evaluation of the regulation of gene expression, DNA replication and repair, and recombination ... Chromosome conformation capture has enabled researchers to study the influences of chromosomal activity on the aforementioned cellular mechanisms ...
Supernumerary Chromosome
... Supernumerary chromosome could refer to B chromosome in some animals and plants Small supernumerary marker chromosome (sSMC) in humans ...
Contiguous Gene Syndrome
... or more genes that are located next to each other on a chromosome ... syndrome occurs when the deletion occurs on the paternal chromosome ... If this deletion occurs on the maternal chromosome, it causes the Angelman syndrome ...
Meiome - Nondisjunction
... The normal separation of chromosomes in meiosis I or sister chromatids in meiosis II is termed disjunction ... which have either too many or too few of a particular chromosome, and is a common mechanism for trisomy or monosomy ... in humans, including but not limited to Down Syndrome - trisomy of chromosome 21 Patau Syndrome - trisomy of chromosome 13 Edward Syndrome - trisomy of chromosome 18 Klinefelter Syndrome ...
Chromosome - Aberrations
... Some chromosome abnormalities do not cause disease in carriers, such as translocations, or chromosomal inversions, although they may lead to a higher chance of bearing a ... Abnormal numbers of chromosomes or chromosome sets, called aneuploidy, may be lethal or may give rise to genetic disorders ... Genetic counseling is offered for families that may carry a chromosome rearrangement ...

Famous quotes containing the word chromosome:

    We become male automatically because of the Y chromosome and the little magic peanut, but if we are to become men we need the help of other men—we need our fathers to model for us and then to anoint us, we need our buddies to share the coming-of-age rituals with us and to let us join the team of men, and we need myths of heroes to inspire us and to show us the way.
    Frank Pittman (20th century)