The study of how differences between individuals are transmitted from one generation to the next
The study of how information in the genes is used in the development and functioning of the adult organism
Gene products are studied in vivo through the genes that encode them Gene products are purified and studied in vitro Genetic analysis tells you that the product has a role in the process It doesn’t tell you how direct the role is Biochemistry tells you what a protein can do in vitro It doesn’t tell you whether it really does it in vivo Genetics Biochemistry
Three Major Areas of Genetics Quantitative Genetics Genom Mendel’s Principles DNA cloning Control of gene expression Cytogenetics Translation Chromosomal mapping Speciation Transcription Sex linkage Evolution Chemistry of DNA Sex determination Population Genetics DNA structure Meiosis + mitosis Evolutionary Genetics Molecular Genetics Classical Genetics (Transmission)
Transmission Genetics: focuses on the transmission of genes and chromosomes in individuals from generation to generation.
Molecular Genetics: focuses on the structure and function of genes at the molecular level.
Population Genetics: focuses on heredity in groups of individuals for traits determined by one or only a few genes.
Quantitative Genetics: focuses on heredity in groups of individuals for traits determined by many genes simultaneously.
Molecular Genetics ? Understanding the molecular basis of biological processes through studies on the gene Study of gene structure, function and regulation – below the organism level Study of genes and how they are expressed The Molecular Basis of Genetics Molecular Biology? Study of molecules in cells