Bio-E Population Genetics
Terms
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- Genetic Variation
- slight difference in genes in individuals of a populations. +Behavioral, Physical, Biochemical
- Hardy-Weinberg Principal
- if allele frequencies are not changing in a population, they will not evolve
- Watson and Crick
- discovered 3D structures of DNA
- Geographic Isolation
- physical barrier keeps populations seperate
- Reproductive Isolation
- no longer mate
- Darwin
- Evolution by natural selection
- Directional Selection
- individuals at one end of the curb are the fittest
- when some individuals migrate and establish a new population
- Founder effect
- Genetic Drift occurs when
- when some individuals migrate and establish a new population
- Stabilizing Selection
- individuals in middle of curb (avg.) are fittest
- Behavioral Isolation
- diff. mating/courtship rituals
- gene
- segment of DNA that codes for a protein
- Mutations
- change in DNA's bases
- Gene Pool
- All of the alleles in a population
- Gene Shuffling
- gamete formation and fertilization
- Speciation
- formation of new species
- Mendel
- contributed to the rules of inheritance
- Relative Frequency
- # times an allele occurs in a population compared to another allele (%)
- if allele frequencies are not changing in a population, they will not evolve
- Genetic Equilibrium
- Cause of Mutations
- radiation, ultraviolet, microwave, chemicals, random errors
- Variation
- slight change in a species
- Allele
- form of the gene
- In humans, there are _______ different combos of genes possible when 23 chromosomes from each parent join
- 8.4 million