A ring chromosome is an aberrant chromosome whose ends have fused together to form a ring. Ring chromosomes were first discovered by Lilian Vaughan Morgan...
15 KB (792 words) - 18:19, 31 May 2023
Chromosome 21 is one of the 23 pairs of chromosomes in humans. Chromosome 21 is both the smallest human autosome and chromosome, with 46.7 million base...
34 KB (3,087 words) - 13:30, 30 July 2024
Ring chromosome 22, also known as ring 22, is a rare chromosomal disorder. Ring chromosomes occur when the ends of a chromosome lose material and fuse...
11 KB (1,375 words) - 03:51, 8 August 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
Ring chromosome 14 syndrome is a very rare human chromosome abnormality. It occurs when one or both of the telomeres that mark the ends of chromosome...
7 KB (550 words) - 06:24, 3 November 2023
Polytene chromosomes are large chromosomes which have thousands of DNA strands. They provide a high level of function in certain tissues such as salivary...
16 KB (1,980 words) - 00:24, 31 October 2023
Ring chromosome 15 (sometimes denoted as r15) is a condition that arises when chromosome 15 fuses to form a ring chromosome. Usually, ring chromosome...
13 KB (1,409 words) - 08:49, 26 July 2023
Chromosome 22 is one of the 23 pairs of chromosomes in human cells. Humans normally have two copies of chromosome 22 in each cell. Chromosome 22 is the...
27 KB (2,209 words) - 17:18, 18 August 2024
Chromosome 9 is one of the 23 pairs of chromosomes in humans. Humans normally have two copies of this chromosome, as they normally do with all chromosomes...
26 KB (1,594 words) - 20:53, 24 August 2024
Chromosome 21 monosomy Chromosome 21 ring Chromosome 21, monosomy 21q22 Chromosome 21, tetrasomy 21q Chromosome 21, uniparental disomy of Chromosome 22...
40 KB (3,657 words) - 03:02, 17 August 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
The list of organisms by chromosome count describes ploidy or numbers of chromosomes in the cells of various plants, animals, protists, and other living...
103 KB (5,184 words) - 20:49, 10 September 2024
Turner syndrome (redirect from Ring chromosome X)
which the patient's cells have only one X chromosome or are partially missing an X chromosome (sex chromosome monosomy) leading to the complete or partial...
77 KB (9,067 words) - 03:01, 12 September 2024
Chromosome 1 is the designation for the largest human chromosome. Humans have two copies of chromosome 1, as they do with all of the autosomes, which are...
46 KB (3,290 words) - 20:16, 17 August 2024
Chromosome 7 is one of the 23 pairs of chromosomes in humans, who normally have two copies of this chromosome. Chromosome 7 spans about 160 million base...
38 KB (2,949 words) - 22:58, 15 September 2024
Down syndrome (redirect from Trisomy 21)
nations), also known as trisomy 21, is a genetic disorder caused by the presence of all or part of a third copy of chromosome 21. It is usually associated with...
149 KB (14,894 words) - 05:50, 19 September 2024
Chromosome 16 is one of the 23 pairs of chromosomes in humans. People normally have two copies of this chromosome. Chromosome 16 spans about 90 million...
24 KB (1,670 words) - 21:40, 18 September 2024
Chromosome 8 is one of the 23 pairs of chromosomes in humans. People normally have two copies of this chromosome. Chromosome 8 spans about 146 million...
29 KB (1,896 words) - 23:26, 28 March 2024
Chromosome 5 is one of the 23 pairs of chromosomes in humans. People normally have two copies of this chromosome. Chromosome 5 spans about 182 million...
32 KB (2,298 words) - 22:55, 28 March 2024
Jacobsen syndrome (redirect from Chromosome 11q partial deletion)
children have deletions on chromosome 11 as well as some extra genetic material from another chromosome. Ring chromosome 11- in this case genetic material...
13 KB (1,314 words) - 08:28, 11 September 2024
marker chromosome (sSMC) is an abnormal extra chromosome. It contains copies of parts of one or more normal chromosomes and like normal chromosomes is located...
56 KB (7,172 words) - 11:08, 18 November 2023
Cell division (redirect from Daughter chromosome)
of a contractile ring for the cell division. Cell division in eukaryotes is more complicated than in prokaryotes. If the chromosomal number is reduced...
38 KB (4,282 words) - 13:16, 6 September 2024
13q deletion syndrome (redirect from Chromosome 13q deletion)
either be deleted linearly or as a ring chromosome. It is typically not hereditary— the loss of a portion of the chromosome typically occurs during gametogenesis...
13 KB (1,484 words) - 21:55, 25 June 2024
chat syndrome is a rare genetic disorder due to a partial chromosome deletion on chromosome 5. Its name is a French term ("cat-cry" or "call of the cat")...
10 KB (1,147 words) - 05:10, 12 December 2023
the cytoplasm of the separating daughter cells. It thereby ensures that chromosome number and complement are maintained from one generation to the next and...
28 KB (3,585 words) - 09:51, 18 August 2024
Polysomy (category Chromosomal abnormalities)
humans where affected individuals possess three copies (trisomy) of chromosome 21. Polysomic inheritance occurs during meiosis when chiasmata form between...
39 KB (4,281 words) - 21:02, 17 August 2024
Benzene (redirect from Benzene ring)
benzene molecule is composed of six carbon atoms joined in a planar hexagonal ring with one hydrogen atom attached to each. Because it contains only carbon...
91 KB (9,542 words) - 07:00, 17 September 2024
ring-tailed lemur, let alone the rest of the lemur clade, which comprises the entire endemic primate population of the island. However, chromosomal and...
82 KB (8,895 words) - 18:42, 17 August 2024
Cohesin (section Localization of cohesin rings)
can activate mRNA transcription in a given TAD. A few cohesin rings are found in chromosome arms that have AT-rich DNA sequences indicating that DNA sequence...
31 KB (3,806 words) - 16:36, 7 May 2024
no blasts in the blood; no Auer rods; ringed sideroblasts; normal or mixed karyotypes without complex chromosome abnormalities; and in vitro marrow culture...
64 KB (7,099 words) - 23:51, 19 August 2024