BIOL 205 Study Guide - Final Guide: Cell Potency, Nucleosome, Cell Nucleus

• School: McGill University
• Department: Biology (Sci)
• Course: BIOL 205
• Professor: Rajinder Dhindsa

Document Summary

P2: very important: atomic size and organismal size, biological systems have predictable and accurate activities, their margin of error must be small larger numbers = larger accuracy, stability, predictable. All deviant molecules are not identical: phenotypic variance due to molecular variance and duration of molecular expression, molecular variance. Intrinsic component providing raw material for natural selection to act on. Smaller pop. mrna/proteins = more deviant molecule + shorter: measurable number of proteins are defective generation time faster evolution, mechanisms to evolve and degrade them and recycle aa. Irreversible increases in size or volume or an organism: unlimited resources increase exponentially, limited resources growth stationary. Nmax-n = growth to be achieved, if 0: growth stops, # of cells become stationary. Stationary phase: nutrient limited, slowly stops growing then stops. Gene activation or repression: development (used interchangeably with differentiation, qualitative changes during the life cycle puberty, flowering.