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The list of organisms by chromosome count describes ploidy or numbers of chromosomes in the cells of various plants, animals, protists, and other living organisms.This number, along with the visual appearance of the chromosome, is known as the karyotype, [1] [2] [3] and can be found by looking at the chromosomes through a microscope.
Chromosome scale, aligned to 22 pseudochromosomes (22 somatic), no mitochondrial chromosome [38] Scaffold N50: 44.0 Mbp [38] Contig N50: 6.5 Mbp [38] 60.0x genome coverage [38] Spengelidae: Glandiceps talaboti: keGlaTala1.1 590.49 Mbp [40] N/A 2024 draft [40] BUSCO: Unknown; Chromosome scale, aligned to 24 pseudochromosomes (23 somatic ...
All great apes have similar genetic chromosome structure. Humans have one pair fewer chromosomes than other apes, as humans have 23 chromosome pairs, while all other apes have 24, [13] with ape chromosomes 12 and 13 fused in the human genome into a large chromosome (which contains remnants of the centromere and telomeres of the ancestral 12 and ...
It would also be helpful to list the specific species of hyena used for its chromosome count, as it is highly unlikely for every member of Hyaenidae to possess the same chromosome number, considering the great evolutionary divergence each species underwent. — Preceding unsigned comment added by 70.30.110.233 19:45, 19 July 2019 (UTC)
Organisms in which a particular chromosome, or chromosome segment, is under- or over-represented are said to be aneuploid (from the Greek words meaning "not", "good", and "fold"). Aneuploidy refers to a numerical change in part of the chromosome set, whereas polyploidy refers to a numerical change in the whole set of chromosomes. [44]
This is an accepted version of this page This is the latest accepted revision, reviewed on 22 February 2025. DNA molecule containing genetic material of a cell This article is about the DNA molecule. For the genetic algorithm, see Chromosome (genetic algorithm). Chromosome (10 7 - 10 10 bp) DNA Gene (10 3 - 10 6 bp) Function A chromosome and its packaged long strand of DNA unraveled. The DNA's ...
The basic number of chromosomes in the somatic cells of an individual or a species is called the somatic number and is designated 2n. In the germ-line (the sex cells) the chromosome number is n (humans: n = 23). [4] [5] p28 Thus, in humans 2n = 46. So, in normal diploid organisms, autosomal chromosomes are present in two copies.
Euploidy and aneuploidy describe having a number of chromosomes that is an exact multiple of the number of chromosomes in a normal gamete; and having any other number, respectively. For example, a person with Turner syndrome may be missing one sex chromosome (X or Y), resulting in a (45,X) karyotype instead of the usual (46,XX) or (46,XY).