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Many generations that followed had cases of polydactyly What is this an example of?
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∙ 14y ago
Founder Effect
Wiki User
∙ 14y ago
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Many generations that followed had cases of polydactyly. what is this example of?
Founder Effect
In A small founding population few hundred Europeans in North America had an unusually high frequency of an allele that causes polydactyly (six fingers). Many generations that followed had cases of?
The Founder Effect The founder effect is when a few individuals of a species form a new population. The gene pool composition, therefore, is not reflective of the gene pool of the original population. Think of this as a small number of people starting their own colony. This is an example of the Founder effect because Polydactyly is a dominant trait. And in a large population, it will be rare finding a person with a 6th digit. In a smaller population, however, polydactyly has a higher frequency of this allele, because the smaller the population, the higher the sensitivity for inbreeding and lower genetic variation. So, polydactyly (dominant allele) + Increase inbreeding= Higher polydactyly allele frequency.
A small founding population of a few hundred Europeans in North America had an unusually high frequency of an allele that causes polydactyly six fingers Many generations that followed had cases of?
The Founder Effect The founder effect is when a few individuals of a species form a new population. The gene pool composition, therefore, is not reflective of the gene pool of the original population. Think of this as a small number of people starting their own colony. This is an example of the Founder effect because Polydactyly is a dominant trait. And in a large population, it will be rare finding a person with a 6th digit. In a smaller population, however, polydactyly has a higher frequency of this allele, because the smaller the population, the higher the sensitivity for inbreeding and lower genetic variation. So, polydactyly (dominant allele) + Increase inbreeding= Higher polydactyly allele frequency.
Is there a way to detect a carrier of polydactyly?
Polydactyly can be diagnosed by external observation, x ray, and fetal sonogram
A small founding population of a few hundred Europeans in North America had an unusually high frequency of an allele that causes polydactyly (six fingers). Many generations that followed had cases of?
The Founder Effect The founder effect is when a few individuals of a species form a new population. The gene pool composition, therefore, is not reflective of the gene pool of the original population. Think of this as a small number of people starting their own colony. This is an example of the Founder effect because Polydactyly is a dominant trait. And in a large population, it will be rare finding a person with a 6th digit. In a smaller population, however, polydactyly has a higher frequency of this allele, because the smaller the population, the higher the sensitivity for inbreeding and lower genetic variation. So, polydactyly (dominant allele) + Increase inbreeding= Higher polydactyly allele frequency.
Are cases of polydactyly always genetic?
Some cases might be due to external factors like exposure to toxins or womb anomalies
What is appeal to precedent?
Court decision that stands as an example to be followed in future, similar 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).
What race has the most cases of polydactyly?
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.
Why does poly dactyl tend to pass on from generation to generation?
Polydactyly, the condition of having extra digits, can pass on from generation to generation due to genetic inheritance. It is usually inherited in an autosomal dominant manner, meaning that if one parent carries the gene for polydactyly, there is a 50% chance each child will inherit the condition. The specific genes and mechanisms involved in polydactyly inheritance can vary depending on the underlying genetic causes.
Based on the cases that followed, was the Bakke decision a complete win for supporters or for opponents of affirmative action Explain your reasoning, referring to at least one of the cases that followed?
26% of the total cases
Why would people have a trait of extra fingers in their generation?
One reason is something called trisomy 31 which is a birth defect. Polydactyly is very uncommon but some families do pass it on as it is a dominate gene. But only about 500 cases are seen per year.People of Asian and Caucasian decent are more likely to have radial (on the thumb side) polydactyly. Ulnar (on the little finger side) polydactylism is more common in people of African decent.
