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20 Cards in this Set
- Front
- Back
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For natural selection to work on a particular population… |
there must be variety within that population |
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Why are genetics and evolution so important to anthropology? |
They help anthropologists document and explain human biological diversity |
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Which type of cells are passed from generation to generation? |
sex cells |
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Our basic hereditary units (genes and chromosomes) are made up of which type of molecules? |
DNA molecules |
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Why are mutations vital to the process of evolution? |
They are the most important source of variety on which natural selection depends and operates |
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the term gene pool refers to all the… |
alleles, genes, chromosomes, and genotypes within a breeding population |
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Human biology…Force |
is not set at birth but has considerable plasticity |
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Forces that contribute to genetic evolution are… |
natural selection, mutation, random genetic drift, and gene flow |
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During the 18th century, many scholars became interested in biological diversity, human similarities, and differences origins, ect. At that time, the most commonly accepted explaination of the origin of species was… |
creationism, the belief that biological similarities and differences originated at creation |
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To what does the term gene flow refer? |
the exchange of genetic material between populations of the same species |
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In the debate of how speciation occurs, advocates of punctuated equilibrium… |
suggest that long periods of stability, during which species change little, are interrupted by evolutionary leaps
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T or F: one of Gregor Mendel’s contributions to genetics was his discovery that traits are inherited as discrete units |
True |
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Phenotype refers to the genetic makeup of an organism |
false |
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T or F: Mutations introduce genetic variation into a gene pool |
true |
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T or F: gene flow between populations works to prevent speciation |
true |
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darwin and wallace simultaneously proposed which of the following theoretical models? |
natural selection |
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What is the term for the belief that explanations for past events should be sought in ordinary forces that are at work today? |
uniformitarianism |
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Sir Charles lyell influenced Darwin with his principle of catastrophism. His geological research was also critical in darwin’s own formulations because it… |
cast serious doubt on the belief that the world was only 6000 years old, allowing for a much broader time span |
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Natural selection is the process by which the forms most fit to survive and reproduce in a given environment do so in greater numbers than others in the same population. but more than survival of the fittest, natural selection is the natural process that lead to… |
differential reproductive success |
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Our reliance on culture has increased in the course of human history. but evolution remains a key part of our human present and future because… |
people haven't stopped adapting biologically
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