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27 Cards in this Set
- Front
- Back
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Two main sources of genetic variation |
mutations and genetic shuffling |
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The number of ________ produced for a given trait depends on how many _______ control the trait |
phenotypes, genes |
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One example of a single gene with two alleles |
Widow's Peak |
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Natural Selection is the only source of evolutionary change. (TRUE/FALSE) |
FALSE |
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Random change in allele frequencies in small populations is called __________ |
Genetic drift
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A situation in which allele frequencies change as a result of the migration of a small subgroup of a population is known as the ___________ __________ |
Founder Effect |
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One example of the Founder Effect |
Evolution of Fruit Flies |
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Hardy-Weinberg (5 things) |
Random mating, large population, no movement, no mutations, no natural selection |
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The genetic drift has less effect on ________ |
Large populations |
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Evolution of two species that evolve together is called _____________ |
Coevolution |
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Who stated that if human population continued to grow unchecked, there would be insufficient resources? |
Thomas Malthus |
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Whose theory was... -Tendency for perfection -Use and disuse -Inheritance of acquired traits |
Lamarck |
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Who produced amino acids by passing sparks through a mix of hydrogen, methane, ammonia, and water? |
Miller and Urey |
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What is the Origin of First Cells (4 of them) |
-Synthesis of simple organic molecules -Synthesis of complex organic molecules -Enclosure of the organic molecules -Linking of the organic compounds by metabolism and reproduction |
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4 areas of Evolutionary Relationships |
-Fossil evidence of change -Comparative embryology -Comparative anatomy -Molecular evidence |
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Theory of Natural Selection (5 of them) |
-Variation -Produces more than can survive -Competition -Advantage of survivors -Advantage spreads |
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What is Evolution? |
Change in DNA over time |
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What was early Earth's oxygen like |
There was little or no oxygen |
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What was early Earth's temperature like |
Much hotter than it is now |
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Life was..... |
never created in a lab |
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Convergent Evolution is |
Similar structures evolve in different animals because of adaptions to similar environments |
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What is Adaptive Radiation? |
When multiple species evolve from a single ancestor |
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5 major forces of evolution |
-Mutations -Migration -Nonrandom mating -Genetic Drift -Natural Selection |
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What do advantages increase? |
Survival Rate |
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What is Natural Selection also known as |
Survival of the Fittest |
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What is an adaptation
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An inherited characteristic that increases an organism's chance of survival |
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Who helped recognize Earth was millions of years old? |
Hutton and Lyell |
