species contain B chromosomes (also known as supernumerary, accessory, (conditionally-)dispensable, or lineage-specific chromosomes). By definition,...
12 KB (1,327 words) - 10:35, 5 January 2024
A chromosome is a package of DNA with part or all of the genetic material of an organism. In most chromosomes, the very long thin DNA fibers are coated...
64 KB (6,538 words) - 21:19, 25 July 2024
Sex chromosomes (also referred to as allosomes, heterotypical chromosome, gonosomes, heterochromosomes, or idiochromosomes) are chromosomes that carry...
30 KB (3,662 words) - 00:18, 25 June 2024
The Y chromosome is one of two sex chromosomes in therian mammals and other organisms. Along with the X chromosome, it is part of the XY sex-determination...
81 KB (8,127 words) - 11:18, 23 June 2024
The list of organisms by chromosome count describes ploidy or numbers of chromosomes in the cells of various plants, animals, protists, and other living...
102 KB (5,166 words) - 07:47, 2 July 2024
The X chromosome is one of the two sex chromosomes in many organisms, including mammals, and is found in both males and females. It is a part of the XY...
42 KB (3,872 words) - 08:56, 25 June 2024
A chromosomal abnormality, chromosomal anomaly, chromosomal aberration, chromosomal mutation, or chromosomal disorder is a missing, extra, or irregular...
18 KB (1,966 words) - 12:02, 29 May 2024
Chromosome 2 is one of the twenty-three pairs of chromosomes in humans. People normally have two copies of this chromosome. Chromosome 2 is the second-largest...
40 KB (2,534 words) - 05:56, 28 July 2024
Chromosome 17 is one of the 23 pairs of chromosomes in humans. People normally have two copies of this chromosome. Chromosome 17 spans more than 84 million...
25 KB (1,879 words) - 21:35, 24 July 2024
Non-random segregation of chromosomes is a deviation from the usual distribution of chromosomes during meiosis, that is, during segregation of the genome...
54 KB (7,317 words) - 21:26, 19 May 2024