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http://www.emedicine.com/derm/topic692.htm
Postaxial hand polydactyly is a common isolated disorder in African black and African American children, and autosomal dominant transmission is suspected. Postaxial polydactyly is approximately 10 times more frequent in blacks than in whites and is more frequent in male children. In contrast, postaxial polydactyly seen in white children is usually syndromic and associated with an autosomal recessive transmission.
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Are cases of polydactyly always genetic?
Cases of polydactyly can be either genetic or occur sporadically. Genetic polydactyly is inherited and can be passed down in families, while sporadic polydactyly may result from random genetic mutations or other factors.
Is there a way to detect a carrier of polydactyly?
Polydactyly can be diagnosed by external observation, x ray, and fetal sonogram
Many generations that followed had cases of polydactyly What is this an example of?
Founder Effect
Many generations that followed had cases of polydactyly. what is this example of?
Founder Effect
Is Polydactyly autosomal or sex-linked?
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.
When does polydactyly occur?
Polydactyly occurs during fetal development, typically when a baby is still in the womb. It is a congenital condition where a baby is born with extra fingers or toes. Polydactyly can be detected through prenatal ultrasound screening in some cases.
What is polydactyly a symptom of?
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).
Why does poly dactyl tend to pass on from generation to generation?
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!
How many people have polydactyly syndrome?
1 out of every 500 people are affected with Polydactyly, being most common in black males and least common in white females.
What ethnic group is most likely to get polydactyly?
It is most common among those of African ancestry.
Is the word race verb?
depends on the context in most common cases it is used as a noun
Is the word race a verb?
depends on the context in most common cases it is used as a noun
