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Unbanded is dominant, and the number of bands is controlled by modifier genes at unlinked loci (see epistasis). The polymorphism exists within most sites, though the proportions of morphs varies considerably between sites. [81] Some of the loci controlling the polymorphism are closely linked, forming a super-gene. It has been hypothesised that ...
In biology, polymorphism [1] is the occurrence of two or more clearly different morphs or forms, also referred to as alternative phenotypes, in the population of a species. To be classified as such, morphs must occupy the same habitat at the same time and belong to a panmictic population (one with random mating).
The World's 100 most threatened species [1] is a compilation of the most threatened animals, plants, and fungi in the world. It was the result of a collaboration between over 8,000 scientists from the International Union for Conservation of Nature Species Survival Commission (IUCN SSC), along with the Zoological Society of London . [ 2 ]
There have been a number of studies looking into various polymorphisms of asthma-associated genes and how those polymorphisms interact with the carrier's environment. One example is the gene CD14, which is known to have a polymorphism that is associated with increased amounts of CD14 protein as well as reduced levels of IgE serum. [30]
Trichomycterus davisi, for example, is an extreme case where the polymorphism was present within a single chimeric individual. [1] It has also been studied in alfalfa, [2] shrews, [3] Brazilian rodents, [4] and an enormous variety of other animals and plants. [5] In one instance it has been found in a human. [6]
Lists of threatened species are drawn up under the Act and these lists are the primary reference to threatened species in Australia. The Species Profile and Threats Database (SPRAT) is a searchable online database about species and ecological communities listed under the EPBC Act. It provides information on what the species looks like, its ...
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Copy-neutral LOH is a form of allelic imbalance. In copy-neutral LOH, one allele or whole chromosome from a parent is missing. This problem leads to duplication of the other parental allele. Copy-neutral LOH may be pathological. For example, say that the mother's allele is wild-type and fully functional, and the father's allele is mutated.