ANTH 203 Lecture Notes - Lecture 4: Ordovician, Inclusive Fitness, Sympatric Speciation
3 Jun 2012
School
Department
Course
Professor
Document Summary
Ignored for 35 years because most biologists couldn"t understand probability statistics. Have alternate forms that produce different effects, called alleles. Dominant allele: expressed with combined with another dominant or with a recessive allele. Recessive allele: expressed only when combined with another recessive allele. Product of genotype and influences of the environment. The dominant allele will be expressed in the phenotype. Each allele is as likely to be passed down as any other. Can occur in individual gene, or in entire chromosomes, or structural change (i. e. adding a segment, reversal, etc) Creation of new genotypes resulting from segregation and the exchange of genetic material between paired chromosomes during meiosis: recombination. Any group of organisms which can interbreed to produce fertile offspring. Can be contiguous population or separated into sub-populations. A population in which genetic material is actually being exchanged. All of the genes in a mendelian population. More than one allele for each trait in a gene pool e. g. eye color.
