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A number of mutations of the LMBR1 gene, in dogs, humans, and mice, can cause polydactyly. [80] A 2014 report indicated that mice could also exhibit polydactyly arising from mutation in the VPS25 gene. [81] In cattle, it appears to be polygenic with a dominant gene at one locus and a homozygous recessive at another. [75]
One of the polydactyl cats at the Ernest Hemingway House in Key West, Florida.This particular cat has seven (two extra) toes on each paw. A polydactyl cat is a cat with a congenital physical anomaly called polydactyly (also known as polydactylism or hyperdactyly), which causes the cat to be born with more than the usual number of toes on one or more of its paws.
PHD finger protein 6 is a protein that in humans is encoded by the PHF6 gene. [5] [6]This gene is a member of the plant homeodomain (PHD)-like finger (PHF) family.It encodes a protein with two atypical PHD-type zinc finger domains, indicating a potential role in transcriptional regulation, that localizes to the nucleolus.
This PT1X gene encodes a transcription factor expressed in hind limbs. When expressed, it causes the formation of hindlimb structures. [citation needed] Liebenberg Syndrome is a result of one of two different genetic mutations. The first is a deletion upstream of the PITX1 gene on chromosome 5.
Camptodactyly is a medical condition that causes one or more digits (fingers or toes) to be permanently bent. It involves fixed flexion deformity of the proximal interphalangeal joints. Camptodactyly can be caused by a genetic disorder. In that case, it is an autosomal dominant trait that is known for its incomplete genetic expressivity. This ...
Clinodactyly is an autosomal dominant trait that has variable expressiveness and incomplete penetrance. [citation needed] Clinodactyly can be passed through inheritance and presents as either an isolated anomaly or a component manifestation of a genetic syndrome. [2] Many syndromes are associated with clinodactyly, including those listed below.
Brachydactyly (from Greek βραχύς (brachus) 'short' and δάκτυλος (daktulos) 'finger') is a medical term denoting the presence of abnormally short digits (fingers or toes) at birth. The shortness is relative to the length of other long bones and other parts of the body. Brachydactyly is an inherited, dominant trait.
The cause of cleft hand lies, for what is known, partly in genetics. The inheritance of cleft hand is autosomal dominant and has a variable penetrance of 70%. [6] Cleft hand can be a spontaneous mutation during pregnancy (de novo mutation). The exact chromosomal defect in isolated cleft hand is not yet defined.