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List of African violet diseases; List of foliage plant diseases (Agavaceae) List of alfalfa diseases; List of almond diseases; List of anemone diseases; List of apple diseases; List of apricot diseases; List of foliage plant diseases (Araceae) List of foliage plant diseases (Arecaceae) List of foliage plant diseases (Araliaceae) List of foliage ...
Trisomy 21 – Down syndrome, an example of a polysomy at chromosome 21. Polysomy is a condition found in many species, including fungi, plants, insects, and mammals, in which an organism has at least one more chromosome than normal, i.e., there may be three or more copies of the chromosome rather than the expected two copies. [1]
[5] [6] Aneuploidy can be full, involving a whole chromosome missing or added, or partial, where only part of a chromosome is missing or added. [5] Aneuploidy can occur with sex chromosomes or autosomes. [citation needed] Rather than having monosomy, or only one copy, the majority of aneuploid people have trisomy, or three copies of one chromosome.
List of foliage plant diseases (Urticaceae) List of foliage plant diseases (Vitaceae) List of fuchsia diseases; G. List of geranium diseases; List of grape diseases; H.
Pages in category "Physiological plant disorders" The following 25 pages are in this category, out of 25 total. This list may not reflect recent changes. ...
Aneuploidy is the presence of an abnormal number of chromosomes in a cell, for example a human somatic cell having 45 or 47 chromosomes instead of the usual 46. [1] [2] It does not include a difference of one or more complete sets of chromosomes. A cell with any number of complete chromosome sets is called a euploid cell. [1]
The following is a list of genetic disorders and if known, type of mutation and for the chromosome involved. Although the parlance "disease-causing gene" is common, it is the occurrence of an abnormality in the parents that causes the impairment to develop within the child. There are over 6,000 known genetic disorders in humans.
Two examples of natural autopolyploids are the piggyback plant, Tolmiea menzisii [19] and the white sturgeon, Acipenser transmontanum. [20] Most instances of autopolyploidy result from the fusion of unreduced (2 n ) gametes, which results in either triploid ( n + 2 n = 3 n ) or tetraploid (2 n + 2 n = 4 n ) offspring. [ 21 ]