BIOL239 Study Guide - Comprehensive Final Exam Guide - Protein, Gene, Chromosome
20 Nov 2018
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Each seed is genetically different (~ fraternal twins; diff colour corn) See dominance and recessiveness: observed consistent pattern of inheritance . Phenotype = observable characteristic (largely determined by genotype) o o commonly referred to as a trait can be influenced by environment. Genotype = genetic makeup; underlying description of the genetic information carried by an individual. Polymorphic gene may have several alleles that normally occur in a population not one as dominant, can easily find variations (eg. gene for blood type) o. Monomorphic gene has only one allele that is normally present in a population (other alleles are very rare) Gamete = reproductive cells o pollen/ovules = sperm/eggs. Mendel"s law of segregation : the two alleles for each trait separate (segregate) during gamete formation, then unite at random, one from each parent, at fertilization: describes how alleles of one gene behave, punnett square - shows possibilities. 3:1 phenotypic ratio simple dominant and recessive traits; cross between monohybrids: predictive.
