In the 1700s, a small group of Europeans settled in Eastern Pennsylvania. Among this small group was an individual who c

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In The 1700s A Small Group Of Europeans Settled In Eastern Pennsylvania Among This Small Group Was An Individual Who C 1 (37.14 KiB) Viewed 145 times

In the 1700s, a small group of Europeans settled in Eastern Pennsylvania. Among this small group was an individual who carried an allele for Ellis-van Creveld syndrome, a very rare form of dwarfism. The allele for this disease is found at a frequency of 7% in the current Pennsylvania Amish community in comparison to only 0.1% in the general population. The low allele frequency of 0.1% was also the allele frequency of the original European population from which the Amish migrated. This is an example of... random mating gene flow natural selection a founder effect