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Cat Body-type Mutation
Cats, like all living organisms, occasionally have mutations that affect their body type. Sometimes, these mutations are striking enough that humans select for and perpetuate them. However, in relatively small or isolated feral cat populations the mutations can also spread without human intervention, for example on islands. Cat breeders exploit the naturally occurring mutations by selectively breeding them in a small gene pool, resulting in the creation of new cat breeds with unusual physical characteristics. The term ''designer cat'' is often used to refer to these cat breeds. This is not always in the best interests of the cat, as many of these mutations are harmful; some are even lethal in their homozygous form. To protect the animal’s welfare it is illegal in several countries or states to breed with parent cats that bear certain of these hypertype mutations. This article gives a selection of cat body type mutant alleles and the associated mutations with a brief description. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mutation
In biology, a mutation is an alteration in the nucleic acid sequence of the genome of an organism, virus, or extrachromosomal DNA. Viral genomes contain either DNA or RNA. Mutations result from errors during DNA or viral replication, mitosis, or meiosis or other types of damage to DNA (such as pyrimidine dimers caused by exposure to ultraviolet radiation), which then may undergo error-prone repair (especially microhomology-mediated end joining), cause an error during other forms of repair, or cause an error during replication ( translesion synthesis). Mutations may also result from substitution, insertion or deletion of segments of DNA due to mobile genetic elements. Mutations may or may not produce detectable changes in the observable characteristics ( phenotype) of an organism. Mutations play a part in both normal and abnormal biological processes including: evolution, cancer, and the development of the immune system, including junctional diversity. Mutati ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kitten
A kitten is a Juvenile (organism), juvenile cat. After being born, kittens display primary altriciality and are fully dependent on their mothers for #Establishing immunity, survival. They normally do not open their eyes for seven to ten days. After about two weeks, kittens develop quickly and begin to explore the world outside their nest. After a further three to four weeks, they begin to eat solid food and grow baby teeth. Domestic kittens are highly social animals and usually enjoy human companionship. Etymology The word "kitten" derives from the Middle English word , which in turn came from the Old French or . Juvenile big cats are called "cubs" rather than kittens; either term (but usually more commonly "kitten") may be used for the young of smaller wild felidae, felids, such as ocelots, caracals, and lynxes. Development A feline Litter (animal), litter usually consists of two to five kittens, but litters with one to more than ten are known. Kittens are typically born af ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Napoleon Cat
The Minuet (also known as the Napoleon) is a hybrid mix of Persian and Munchkin cat breeds. Categorized by The International Cat Association (TICA) as a ''domestic hybrid'', "developed from a deliberate cross between two existing domestic breeds, incorporating characteristics of both parental breeds into the new mix." The Minuet cat is characterized by its short legs, as a result of the dwarfism-mutation derived from the Munchkin breed. According to TICA's official standards, these breeds represent the only permissible outcrosses one may use to create the Minuet. This includes the combinations Minuet × Minuet, Minuet × Munchkin, and Minuet × one of the Persian-type breeds (including Persians, Himalayans and Exotic Shorthairs). Minuets come in both long-haired and short-haired varieties. History Origin In 1996 Joe Smith started breeding Persians with Munchkins. Joe had previously bred Basset Hounds, a breed with osteochondrodysplasia; similarly Munchkin cats ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Minuet Cat
The Minuet (also known as the Napoleon) is a hybrid mix of Persian cat, Persian and Munchkin cat, Munchkin cat breeds. Categorized by The International Cat Association (TICA) as a ''domestic hybrid'', "developed from a deliberate cross between two existing domestic breeds, incorporating characteristics of both parental breeds into the new mix." The Minuet cat is characterized by its short legs, as a result of the Dwarf cat, dwarfism-mutation derived from the Munchkin breed. According to TICA's official standards, these breeds represent the only permissible outcrosses one may use to create the Minuet. This includes the combinations Minuet × Minuet, Minuet × Munchkin, and Minuet × one of the Persian-type breeds (including Persian (cat), Persians, Himalayan (cat), Himalayans and Exotic shorthair, Exotic Shorthairs). Minuets come in both long-haired and short-haired varieties. History Origin In 1996 Joe Smith started breeding Persians with Munchkins. Joe had prev ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Minskin
The Minskin is a breed of cat derived from intentional cross-breeding between the Munchkin and Burmese cat breeds, with the addition of Sphynx and Devon Rex. It is a mostly-hairless breed of cat History Origin In 1998, Paul McSorley began developing the breed in Boston. Paul wanted a breed with the short legs of the Munchkin but a similar appearance to the colour point pattern of the Siamese; however he only wanted fur on the extremities of the cat. To achieve his desired breed he bred the Munchkin with the Sphynx to try and restrict hair to the points. He later added in Devon Rex and Burmese stock into the breed. The first cat that met the desired standard was born in July 2000. By early 2005, roughly 50 cats met the criteria. Appearance The Minskin is notable for its short stature caused by achondroplasia and the hairlessness or near hairlessness. The head of the Minskin is rounded and wide. The ears have slightly rounded tips. The eyes are large and round, set wide apart. Th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dwarfism
Dwarfism is a condition of people and animals marked by unusually small size or short stature. In humans, it is sometimes defined as an adult height of less than , regardless of sex; the average adult height among people with dwarfism is . ''Disproportionate dwarfism'' is characterized by either Rhizomelia, short limbs or a short torso. In cases of ''proportionate dwarfism'', both the limbs and torso are unusually small. Intelligence is usually normal, and most people with it have a nearly normal life expectancy. People with dwarfism can usually bear children, although there are additional Pregnancy risks, risks to the mother and child depending upon the underlying condition. The most common and recognizable form of dwarfism in humans (comprising 70% of cases) is achondroplasia, a genetic disorder whereby the limbs are diminutive. Growth hormone deficiency is responsible for most other cases. There are many other less common causes. Treatment of the condition depends on the u ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dwarf Cat
A dwarf cat (sometimes nicknamed a sausage cat) is a domestic cat with dwarfism due to rare genetic mutations that cause a disproportionate feline body. The mutation usually leads to significant health problems. Unlike undersized cats of normal proportions, dwarf cats suffer from the genetic mutations osteochondrodysplasia and achondroplasia (a form of osteochondrodysplasia). These genetic disorders of bone and cartilage are typically manifested as abnormal bone shape, poor growth or lack of growth, bowing of the limbs to the side – front legs are more likely to be affected, and spinal malformations. The breeding of dwarf cats is prohibited in several countries and states, due to the animal’s welfare concerns. Furthermore, except for TICA, all major cat registries neither recognize nor allow crossbreeding with dwarf cats. Characteristics The dwarf cat is recognized by its characteristically short legs, they are chondrodysplastic and have much shorter and thicker legs tha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Munchkin (cat)
The Munchkin is a breed of cat characterized by its Dwarfism, very short legs, which are caused by a genetic mutation. Compared to many other cat breeds, it is a relatively new breed, documented since 1940s and officially recognized in 1991. The Munchkin is considered to be the original breed of dwarf cat. Much controversy erupted over the breed when it was recognized by The International Cat Association (TICA) in 1997 with critics voicing concerns over potential health and mobility issues. Many pedigree cat associations around the world have refused to recognize the Munchkin cat due to the welfare of the breed and uncertainty of the health issues, including the Governing Council of the Cat Fancy (GCCF). Breeding of Munchkin cats is prohibited by law in several countries due to these genetic health concerns. The name derives from writer L. Frank Baum's diminutive inhabitants of Munchkin Country, originating in the 1900 novel, ''The Wonderful Wizard of Oz''. History Breed creatio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Munchkin Cat 2 (cropped)
A Munchkin is a native of the fictional Munchkin Country in the Oz books by American author L. Frank Baum. Although a common fixture in Germanic culture, Germanic fairy tale, fairy tales, they are introduced to popular culture, modern audiences with the first appearance in the classic children's novel ''The Wonderful Wizard of Oz'' (1900) where they welcome Dorothy Gale to Land of Oz, their city in Oz. The Munchkins are described as being the same height as Dorothy and they wear only shades of blue clothing, as blue is the Munchkins' favorite color. Blue is also the predominating color that officially represents the eastern quadrant in the Land of Oz. The Munchkins have appeared in various media, including the 1939 film ''The Wizard of Oz'', as well as in various other films and comedy acts. Concept While Baum may have written about it, there are no surviving notes for the composition of ''The Wonderful Wizard of Oz''. The lack of this information has resulted in speculation of t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leslie A
Leslie may refer to: * Leslie (name), a name and list of people with the given name or surname, including fictional characters Families * Clan Leslie, a Scottish clan with the motto "grip fast" * Leslie (Russian nobility), a Russian noble family of Scottish origin Places Canada * Leslie, Saskatchewan * Leslie Street, a road in Toronto and York Region, Ontario ** Leslie (TTC), a subway station ** Leslie Street Spit, an artificial spit in Toronto United States *Leslie, Arkansas *Leslie, Georgia *Leslie, Michigan *Leslie, Missouri *Leslie, West Virginia *Leslie, Wisconsin *Leslie Township, Michigan *Leslie Township, Minnesota Elsewhere * Leslie Dam, a dam in Warwick, Queensland, Australia * Leslie, Mpumalanga, South Africa * Leslie, Aberdeenshire, Scotland, see List of listed buildings in Leslie, Aberdeenshire * Leslie, Fife, Scotland, UK Other uses * Leslie speaker system * Leslie Motor Car company * Leslie Controls, Inc. * Leslie (singer) (born 1985), French singer * Lis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
American Ringtail
American(s) may refer to: * American, something of, from, or related to the United States of America, commonly known as the "United States" or "America" ** Americans, citizens and nationals of the United States of America ** American ancestry, people who self-identify their ancestry as "American" ** American English, the set of varieties of the English language native to the United States ** Native Americans in the United States, indigenous peoples of the United States * American, something of, from, or related to the Americas, also known as "America" ** Indigenous peoples of the Americas * American (word), for analysis and history of the meanings in various contexts Organizations * American Airlines, U.S.-based airline headquartered in Fort Worth, Texas * American Athletic Conference, an American college athletic conference * American Recordings (record label), a record label that was previously known as Def American * American University, in Washington, D.C. Sports teams S ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Founder Effect
In population genetics, the founder effect is the loss of genetic variation that occurs when a new population is established by a very small number of individuals from a larger population. It was first fully outlined by Ernst Mayr in 1942, using existing theoretical work by those such as Sewall Wright. As a result of the loss of genetic variation, the new population may be distinctively different, both genotypically and phenotypically, from the parent population from which it is derived. In extreme cases, the founder effect is thought to lead to the speciation and subsequent evolution of new species. In the figure shown, the original population has nearly equal numbers of blue and red individuals. The three smaller founder populations show that one or the other color may predominate (founder effect), due to random sampling of the original population. A population bottleneck may also cause a founder effect, though it is not strictly a new population. The founder effect o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
