In Great Britain, prior to the 1800s, most peppered moths had wings that were white with black specks and they were hard to see on tree bark. In 1848, a new "species" was spotted: a completely black moth! But these were actually peppered moths. Incidentally, the Industrial Revolution in Great Britain caused tons of soot to spew into the atmosphere and cover houses, roads, trees, cars, etc. By the 1950s, one hundred years later, more than 90% of peppered moths were black. Answer Questions 1 through 3 to discover the evolutionary scenario around this change. What forces of evolution are at work? Check all that apply. O Mutation (Chemical change in the DNA. It can be positive, neutral, or deleterious. ) O Natural Selection (The process by which biological variation (adaptations) becomes more common in a population over generations.) O Genetic Drift (When "random" factors cause a change in allele frequency over time. These factors have nothing to do with genetic health or an organism's fitness for its environment.) O Gene Flow (Transfer of genes across population boundaries because their members are breeding with one another.)
In Great Britain, prior to the 1800s, most peppered moths had wings that were white with black specks and they were hard to see on tree bark. In 1848, a new "species" was spotted: a completely black moth! But these were actually peppered moths. Incidentally, the Industrial Revolution in Great Britain caused tons of soot to spew into the atmosphere and cover houses, roads, trees, cars, etc. By the 1950s, one hundred years later, more than 90% of peppered moths were black. Answer Questions 1 through 3 to discover the evolutionary scenario around this change. What forces of evolution are at work? Check all that apply. O Mutation (Chemical change in the DNA. It can be positive, neutral, or deleterious. ) O Natural Selection (The process by which biological variation (adaptations) becomes more common in a population over generations.) O Genetic Drift (When "random" factors cause a change in allele frequency over time. These factors have nothing to do with genetic health or an organism's fitness for its environment.) O Gene Flow (Transfer of genes across population boundaries because their members are breeding with one another.)
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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Transcribed Image Text:Case #1: The Story of the Peppered Moth
In Great Britain, prior to the 1800s, most peppered moths had wings that were white with black
specks and they were hard to see on tree bark.
In 1848, a new "species" was spotted: a completely black moth! But these were actually peppered
moths.
Incidentally, the Industrial Revolution in Great Britain caused tons of soot to spew into the
atmosphere and cover houses, roads, trees, cars, etc. By the 1950s, one hundred years later, more
than 90% of peppered moths were black.
Answer Questions 1 through 3 to discover the evolutionary scenario around this change.
What forces of evolution are at work? Check all that apply.
O Mutation (Chemical change in the DNA. It can be positive, neutral, or deleterious.)
Natural Selection (The process by which biological variation (adaptations) becomes more common in a
population over generations.)
O Genetic Drift (When "random" factors cause a change in allele frequency over time. These factors have
nothing to do with genetic health or an organism's fitness for its environment.)
O Gene Flow (Transfer of genes across population boundaries because their members are breeding with one
another.)
Expert Solution
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Introduction:
Evolution is the change in the inherited characteristics of biological populations over successive generations.
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