ANTH 1001 Chapter : Anthropology
Document Summary
9/4/2012 8:22:00 pm: gregor mendel- lived from 1822 to 1884, in 1866 his paper on his study was published, principle of segregation: genes occur in pairs in an individual. In the production of sex cells, that pair of genes is separated. There is generally more genotypic variability than phenotypic variability in a species. Metaphase- homologous chromosomes align independently from one another. Metaphase- homologous chromosomes remain aligned with one another and non homologous chromosomes align independently from one another. Metaphase 2- non homologous chromosomes align independently from one another. Replication of a chromosome: occurs during interphase, when a chromosome replicates, two chromatids are produced, and they are held together by a centromere, dna is a double helical molecule. Dna is comprised of nucleotides: a nucleotide consists of phosphoric acid, a sugar, and a base which contains nitrogen, 4 bases in dna.
