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Around 8,000 years ago wild potato's were being harvested by humans in South America. They were from warm regions of Peru, and had tiny tubers. In the 16th century, European's introduced these tiny potato's to Europe. Over time, larger potato varieties appeared. Today, many varieties exist, such as this Idaho potato. Recently, a gene for tuber size was discovered, larger size is related to variation in the gene pool (potato's growing in cooler areas show higher frequencies). Questions: What kind of selection was going on here, why would small tuber size be more common in the tropics, how does founder effect come into play here for our current larger potato varieties? Lastly, what is the point of a tuber in a plant? Original varieties of potato Idaho potato

Around 8,000 years ago wild potato's were being harvested by humans in South America. They were from warm regions of Peru, and had tiny tubers. In the 16th century, European's introduced these tiny potato's to Europe. Over time, larger potato varieties appeared. Today, many varieties exist, such as this Idaho potato. Recently, a gene for tuber size was discovered, larger size is related to variation in the gene pool (potato's growing in cooler areas show higher frequencies). Questions: What kind of selection was going on here, why would small tuber size be more common in the tropics, how does founder effect come into play here for our current larger potato varieties? Lastly, what is the point of a tuber in a plant? Original varieties of potato Idaho potato

Human Anatomy & Physiology (11th Edition)
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
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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Around 8,000 years ago wild potato's were being harvested by humans in South America. They were from warm regions of Peru, and had tiny tubers. In the 16th century, European's introduced these tiny potato's to Europe. Over time, larger potato varieties appeared. Today, many varieties exist, such as this Idaho potato. Recently, a gene for tuber size was discovered, larger size is related to variation in the gene pool (potato's growing in cooler areas show higher frequencies). Questions: What kind of selection was going on here, why would small tuber size be more common in the tropics, how does founder effect come into play here for our current larger potato varieties? Lastly, what is the point of a tuber in a plant? Original varieties of potato Idaho potato
Transcribed Image Text:Around 8,000 years ago wild potato's were being harvested by humans in South America. They were from warm regions of Peru, and had tiny tubers. In the 16th century, European's introduced these tiny potato's to Europe. Over time, larger potato varieties appeared. Today, many varieties exist, such as this Idaho potato. Recently, a gene for tuber size was discovered, larger size is related to variation in the gene pool (potato's growing in cooler areas show higher frequencies). Questions: What kind of selection was going on here, why would small tuber size be more common in the tropics, how does founder effect come into play here for our current larger potato varieties? Lastly, what is the point of a tuber in a plant? Original varieties of potato Idaho potato
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