BIOL 1500 Lecture Notes - Pea, Gregor Mendel, Mendelian Inheritance
Document Summary
Traits that are determined by the instructions a person carries on one gene. There are more than 9000 human traits that exhibit straightforward patterns of inheritance. Generally speaking, a dominant trait masks the effect of a recessive trait when an individual carries both the dominant and the recessive version of the instructions for the trait. The existence of traits could disappear for a generation and then show up again down the line. June 12, 2012: when an individual inherits a different allele from each parent, the individual"s genotype for that gene is said to be heterozygous. Dominant and recessive alleles are defined by their action why they are in a heterozygous state. Explain the concept of a single-gene trait: discuss mendel"s contributions to the field of genetics, define the terms gene, allele, dominant, recessive, homozygous, and heterozygous, describe the difference between an organism"s genotype and its phenotype.
