BIOL 1010 Lecture Notes - Sister Chromatids, Spermatogenesis, Oogenesis
Document Summary
Heredity- continuity of biological traits from one generation to the next: results from transmission of hereditary units (genes) from parents to offspring. Variation- inherited differences among individuals of the same species. Genetics- scientific study of heredity and heredity variation. Dna- type of nucleic acid that is a polymer of four different kinds of nucleotides. Genes- units of hereditary information that are made of dna and are located on chromosomes. Locus- specific location on a chromosome that contains a gene. Single parent passes on all its genes to its offspring. Each parent passes on half its genes, to its offspring. Offspring have an unique combination of genes inherited from both parents. Results in a clone or genetically identical individual. Rarely, genetic differences occur as a result of mutation, a change in dna. A sexual reproduction of hydra genetically from their siblings and parents.
