18 Apart from this one village, elsewhere in Switzerland the frequency ofindividuals with spondylocostal dysostosis is much lower, around 5/1000people. Which of the following is the most likely explanation for the highfrequency in the village described in the previous question?Positive selection increased the frequency of the spondylocostal dysostosis allele inthe village relative to the general Swiss populationNegative selection decreased the frequency of the spondylocostal dysostosis allele inthe village relative to the general Swiss populationInbreeding within the village increased the frequency of the spondylocostal dysostosisallele in the village relative to the general Swiss populationThe village was founded by a small number of individuals with an unusually highfrequency of spondylocostal dysostosis carriers

Name: 18 Apart from this one village, elsewhere in Switzerland the frequency
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Description: 18 Apart from this one village, elsewhere in Switzerland the frequency ofindividuals with spondylocostal dysostosis is much lower, around 5/1000people. Which of the following is the most likely explanation for the highfrequency in the village describ

Answered: Apart from this one village, elsewhere…

Human Anatomy & Physiology (11th Edition)

11th Edition

ISBN:9780134580999

Author:Elaine N. Marieb, Katja N. Hoehn

Publisher:Elaine N. Marieb, Katja N. Hoehn

Chapter1: The Human Body: An Orientation

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Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...

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Apart from this one village, elsewhere in Switzerland the frequency of
individuals with spondylocostal dysostosis is much lower, around 5/1000
people. Which of the following is the most likely explanation for the high
frequency in the village described in the previous question?
Positive selection increased the frequency of the spondylocostal dysostosis allele in
the village relative to the general Swiss population
Negative selection decreased the frequency of the spondylocostal dysostosis allele in
the village relative to the general Swiss population
Inbreeding within the village increased the frequency of the spondylocostal dysostosis
allele in the village relative to the general Swiss population
The village was founded by a small number of individuals with an unusually high
frequency of spondylocostal dysostosis carriers

Expert Solution

Step 1: Explain spondylocostal dysostosis

Spondylocostal dysostosis is a condition that occurs from birth and is characterized by abnormalities, in the spine and ribs. The main features typically include;

Shortened Chest; People with this condition have a chest, which can impact lung and heart function.
Limited Neck Mobility; They may have a neck with limited movement.
Protruding Shoulder Blades; The shoulder blades may stick out or appear "winged" from the back.
Sideways Curvature of the Spine; Scoliosis, a sideways curve of the spine is commonly seen in individuals with this disorder.

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