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Two types of genetic drift effects are: the founder effect, in which a few members of a larger population leave to form a new population, and population bottlenecks, where only a few members of a population survive an event. Categorize the examples below as to whether a founder effect or a population bottleneck is more likely. (Four examples describe each of the two types of genetic drift) The human population of Easter Island exhibits a limited gene pool. The Wollemi pine of Australia was thought to be extinct until it was discovered growing in a secluded canyon. The Afrikaner population in South Africa descended from a small number of Dutch colonists and now has a high rate of Huntington disease. A mass extinction event 12,000 years ago eliminated about 75% of cheetahs. Cheetahs are now genetically similar Semi-domesticated reindeer were introduced into Iceland in 1787 from Norway. The Toba supereruption ~73,000 years ago may have reduced the human population of Earth to 3,000- 10,000. Population Bottleneck A form of polydactyly is more frequent in Old Order Amish of Pennsylvania, who descended from 200 immigrants Northern elephant seals were reduced by hunting to a population of as few as 20 animals by the end of the 19th century Founder Effect

Two types of genetic drift effects are: the founder effect, in which a few members of a larger population leave to form a new population, and population bottlenecks, where only a few members of a population survive an event. Categorize the examples below as to whether a founder effect or a population bottleneck is more likely. (Four examples describe each of the two types of genetic drift) The human population of Easter Island exhibits a limited gene pool. The Wollemi pine of Australia was thought to be extinct until it was discovered growing in a secluded canyon. The Afrikaner population in South Africa descended from a small number of Dutch colonists and now has a high rate of Huntington disease. A mass extinction event 12,000 years ago eliminated about 75% of cheetahs. Cheetahs are now genetically similar Semi-domesticated reindeer were introduced into Iceland in 1787 from Norway. The Toba supereruption ~73,000 years ago may have reduced the human population of Earth to 3,000- 10,000. Population Bottleneck A form of polydactyly is more frequent in Old Order Amish of Pennsylvania, who descended from 200 immigrants Northern elephant seals were reduced by hunting to a population of as few as 20 animals by the end of the 19th century Founder Effect

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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Two types of genetic drift effects are: the founder effect, in which a few members of a larger population leave to form a new population, and population bottlenecks, where only a few members of a population survive an event. Categorize the examples below as to whether a founder effect or a population bottleneck is more likely. (Four examples describe each of the two types of genetic drift) The human population of Easter Island exhibits a limited gene pool. The Wollemi pine of Australia was thought to be extinct until it was discovered growing in a secluded canyon. The Afrikaner population in South Africa descended from a small number of Dutch colonists and now has a high rate of Huntington disease. A mass extinction event 12,000 years ago eliminated about 75% of cheetahs. Cheetahs are now genetically similar Semi-domesticated reindeer were introduced into Iceland in 1787 from Norway. The Toba supereruption ~73,000 years ago may have reduced the human population of Earth to 3,000- 10,000. Population Bottleneck A form of polydactyly is more frequent in Old Order Amish of Pennsylvania, who descended from 200 immigrants Northern elephant seals were reduced by hunting to a population of as few as 20 animals by the end of the 19th century Founder Effect
Transcribed Image Text:Two types of genetic drift effects are: the founder effect, in which a few members of a larger population leave to form a new population, and population bottlenecks, where only a few members of a population survive an event. Categorize the examples below as to whether a founder effect or a population bottleneck is more likely. (Four examples describe each of the two types of genetic drift) The human population of Easter Island exhibits a limited gene pool. The Wollemi pine of Australia was thought to be extinct until it was discovered growing in a secluded canyon. The Afrikaner population in South Africa descended from a small number of Dutch colonists and now has a high rate of Huntington disease. A mass extinction event 12,000 years ago eliminated about 75% of cheetahs. Cheetahs are now genetically similar Semi-domesticated reindeer were introduced into Iceland in 1787 from Norway. The Toba supereruption ~73,000 years ago may have reduced the human population of Earth to 3,000- 10,000. Population Bottleneck A form of polydactyly is more frequent in Old Order Amish of Pennsylvania, who descended from 200 immigrants Northern elephant seals were reduced by hunting to a population of as few as 20 animals by the end of the 19th century Founder Effect
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