UO Anthropology 175 – Snodgrass – Midterm F16

Flashcards
Gene
A unit of heredity that contributes to the characteristics or traits of an organism; a gene is composed of organized sequences of
Structural Genes
Codes for Proteins
Regulatory Genes
Regulate expression and timing of other genes
Developmental plasticity
how an organism adjusts during growth and development to match its environment (often
Hominin/Hominids
Bipedalism, 5-7 mya
Enchephalization
increased relative brain size
Population Thinking
Population as the key evolutionary unit
Gene Flow
Movement of genes between population
Genetic Drift
Changes in gene frequencies produced by random factors
Genetic or Darwinian Adaptation
Developed over many generations; reflects natural selection
Functional Adaptations
Adjustments during the lifetime of an individual
Acclimatization
Short term, reversible adaptation E.G. Tanning
Developmental Acclimatization
Long term, irreversible changes that result from exposure to environmental stressors during growth and development.
Modern Synthesis Founders
Fisher, Mayr, Simpson, Dobzhansky
Locus
Physical position on a chromosome
Alleles
Different versions of the same gene
Epigenetics
Study of how environmental factors affect how different parts of the genome are switched on and off at strategic times and places

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