Populations

• What is a population

  a group of organisms of the same species occupying a particular space at a particular time that can potentially interbreed.
• What is the gene pool

  the total number of alleles present in a population
• allelic frequency - describe

  • expresses as a decimal or percentage of the proportion of a certain allele in a gene pool
• what can the Hardy-weinberg equation be used to do

  estimate the frequency of alleles in a population and to see whether a change in allele frequency is occurring in a population over time
• Assumptions of the Hardy-Weinberg equation

  no mutations occur to create new alleles. - there is no movement of alleles into or out of the population by migration. - the population is large. - there is no selection, so every allele has an equal chance of being passed to the next generation. - mating is random
• give one assumption of the hardy-weinberg equation

  mating is random
• give one assumption of the hardy-weinberg equation

  no mutations occur to create new alleles
• give one assumption of the hardy-weinberg equation

  the population is large
• give one assumption of the hardy-weinberg equation

  there is no movement of alleles into or out of the population by migration
• give one assumption of the hardy-weinberg equation

  there is no selection, so every allele has an equal chance of being passed to the next generation.
• Hardy Weinberg formula 


  p+q = 1.0 AND p² + 2pq + q² = 1
• Hardy-Weinburg principle: what is p

  the frequency of the dominant allele
• Hardy-Weinburg principle - what is q

  the frequency of the recessive allele
• Hardy-Weinburg principle- what is p^2

  frequency of homozygous dominant
• Hardy-Weinburg principle- what is 2pq

  frequency of heterozygous
• Hardy-Weinburg principle- what is q^2

  frequency of homozygous recessive