Some cases might be due to external factors like exposure to toxins or womb anomalies
The question is a bit too vague to answer in great detail. In humans, there are cases of polydactyly which are either autosomal dominant or autosomal recessive, depending on how the extra digit is placed. To the best of my knowledge, there are cases which are merely genetic mutations but, for the most part, it is in the genes!
Having six fingers is typically considered a polydactyly trait, which is a rare genetic variation. Whether a trait is dominant or recessive depends on the specific genetic mutation causing it. In polydactyly cases, the inheritance pattern can vary, with some being dominant and others being recessive.
Polydactyly is more common in men, because it is a genetic disorder. Because females have 2 X chromosomes, a recessive trait passed down on one will be covered by the dominant trait on their other X chromosome for no polydactyly. Males though, have an X and Y chromosome which means that that the Y chromosome, carrying no trait for polydactyly, will not affect an X chromosome with the allele for polydactyly. Hence, polydactyly is found in men more than women.
Founder Effect
Yes, polydactyly is considered a physical anomaly where an individual is born with extra fingers or toes. It is often caused by a genetic mutation affecting limb development.
Polydactyly is typically autosomal, meaning it is not linked to the sex chromosomes. However, in some rare cases, polydactyly can be part of a sex-linked genetic disorder.
Polydactyly is a genetic disorder which leads to one having six fingers or toes. This is also known as hexadactyly. It is caused by an autosomal dominant gene. ~ Poly = many dactly = fingers and toes. Polydactyly means more than the usual number of fingers and/or toes. Some cases can be genetic but most are not and there can be any number (not necessarily 6).
No. Polydactyly is purely an autosomal dominant genetic disorder and cannot be caused by any environmental stress.
The question is a bit too vague to answer in great detail. In humans, there are cases of polydactyly which are either autosomal dominant or autosomal recessive, depending on how the extra digit is placed. To the best of my knowledge, there are cases which are merely genetic mutations but, for the most part, it is in the genes!
Yes it is genetic but it is not always considered to be a disorder. It is a very unusual trait but it does not affect the cognitive function or quality of life of people who have it. (Except the prejudices of other people.)
Having six fingers is typically considered a polydactyly trait, which is a rare genetic variation. Whether a trait is dominant or recessive depends on the specific genetic mutation causing it. In polydactyly cases, the inheritance pattern can vary, with some being dominant and others being recessive.
Polydactyly is more common in men, because it is a genetic disorder. Because females have 2 X chromosomes, a recessive trait passed down on one will be covered by the dominant trait on their other X chromosome for no polydactyly. Males though, have an X and Y chromosome which means that that the Y chromosome, carrying no trait for polydactyly, will not affect an X chromosome with the allele for polydactyly. Hence, polydactyly is found in men more than women.
Tyler Steven Hayden discovered polydactyly.
Polydactyly can be diagnosed by external observation, x ray, and fetal sonogram
Founder Effect
Founder Effect
Polydactyly can be caused by various genetic factors, including mutations in genes related to limb development. Chromosomal errors, such as duplications or deletions involving regions associated with limb formation, can also lead to polydactyly. The exact number of chromosome errors that produce polydactyly can vary depending on the specific genetic alterations involved.