BIOL 2500 Lecture Notes - Lecture 7: Summer Squash, Wild Type, Zygosity
2 Jun 2016
School
Department
Course
Professor
Document Summary
Single gene trait describes an inherited variation of a gene that can produce a mutant phenotype. However, this is not a complete depiction of genetic reality. Eg. numerous genes contribute to the normal red eye color of drosophila, including those responsible for production of eye pigments or transport proteins. Biosynthetic pathways are networks of interacting genes that produce a molecular compound as their end points. Signal transduction pathways receive chemical signals from outside a cell and initiate a response inside the cell. Developmental pathways direct growth, development and differentiation of body parts of structures. Completion of one step generates the substate for the next step in the pathway. Completion of every step is necessary to produce the end product. Genetic dissection is an experimental approach taken to investigate the steps of biosynthetic pathways. Genes contributing to a multistep pathways work together to produce the end product.
