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28 Cards in this Set
- Front
- Back
Gene
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Segment of DNA that directs the production of a specific protein or part of a protein.
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Locus
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location of a gene on a chromosome
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Alleles
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Alternative forms of genes.
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Homozygous
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Two copies of the same allele are present at the same locus on Homologous chromosomes
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Heteroygous
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Inidividual possess two different alleles at a loci.
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Genotype
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The genetic makeup of an individual or to the alleles at a particular loci.
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Phenotype
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The observable or detectable physical characteristics of an organism, the detectable expression of the genotype
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Mutation
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During protein synthesis it introduces new alleles
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gene Flow
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how genes migrate between populations
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Genetic Drift
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Small population, randomness, high frequency alleles.
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Recombination
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Meiosis...the great re-shuffler
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natural selection
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directional force for gene flow, genetic drift, and mutation...where traits and alleles become significant in a society.
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Polygenic Inheritence
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how we inherit majority of our traits, many different chromosomes, skin color melanine. Enviroment can impact the polygenic inheritence.
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Pleiotrophy
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body has inability to break down amino acids.
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Biological determinism
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The concept that phenomena including behavior are governed by biological factors.
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Eugerics
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the philosophy of race improvements through forced starilization of members of some groups
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Racism
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Bsed on false believe that intellect and various cultural attributes are inherited along with physical characteristics.
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Polymorphism
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Loci with more than one allele. Alleles that are polymorphic have more than one way of showing up...example would be ABO blood types and eye color.
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Microevolution
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small changes within the species..such as a change in allele frequency.
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Macroevolution
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Increased accumulated change over long periods of time. Speciation
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Ethnocentrism
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Belief that your culture is superior to others.
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Monogenism
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we all came from Adam and Eve
variation in skin, clothes, language, due to plasticity with regards to the climate and enviroment |
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Polygenism
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did not believe we all came from Adam and Eve. Non whites were seen as animals not humans, this became very popular.
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Homeostasis
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A condition of balance or stability within a biological system
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Acclimation
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Physiological response to changes in the enviroment that occrs during an individuals lifetime "short term"
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Vasodilation
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blood vessels dialate on the skin surface, this cools the body
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Vasoconstriction
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Blood vessels shrink. reduces heat loss out of the skin.
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Ancesterol
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retaining the condition that the ancestors had
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