Population Genetics and the New Synthesis Flashcards
allele frequency
the ratio of one allele over total alleles
allele
alternate veraion of a gene
gene pool
all genes/alleles in a given population, population level of genotype
genome
complete set of genes or genetic material present in a cell or organism.
gene
gene is a basic unit of heredity and a sequence of nucleotides in DNA that encodes the synthesis of a gene product, either RNA or protein
genotype
individual’s collection of genes
hardy-weinberg principle
five conditions: 1) large pop 2) isolated 3) no mutations 4) random mating 5) no natural selection (all genotypes have same fitness) p= allele freq A q= allele freq a AA= p^2 Aa= 2pq aa= q^2 (all add up to1)
microevolution
change in the allele frequencies in a pop, can be caused by violating H-W assumptions
New synthesis
fusion of mendelian genetics w darwinian evolution
phenotype
observable characteristics of an individual resulting from the interaction of its genotype with the environment