BIO 325 Lecture Notes - Lecture 1: Ploidy, Maize, Phenotype
Lecture 1 – What is Genetics?
What is genetics?
• Classically genetics has been the study of inheritance
o How are traits passed from one generation to the next?
• Inheritance
o The at of iheitig popet
o The eeptio of geeti ualities transmission from parent to
offspring
o The auisitio of a possessio, oditio, o tait fo past
generation
• Genetics
o Genetics – the study of biological information
o DNA molecules encode the biological information fundamental to all
life forms
o Biological function emerges primarily from protein molecules
o Complex biological systems emerge from the functioning of
regulatory networks that specify the behavior of genes
o All living forms are closely related
o Genomes are modular, allowing rapid evolution
o Genetic techniques permit dissection of biological complexity
How is information stored?
• Biological information is encoded in DNA
• Linear polymer composed of 4 subunits
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