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Lecture Notes for BIOL 3416 - Genetics with Rodgers at Texas Tech (TTU)

Notes Information

Material Type:Outline
Professor:Rodgers
Class:BIOL 3416 - Genetics
Subject:BIOLOGY
University:Texas Tech University
Term:Fall 2009
Keywords:
  • Nonreciprocal Translocation
  • Duplications
  • Codominance
  • Chromosome Inversion
  • Physical Map
  • Centromeres
  • Expressivity
  • Neurofibromatosis
  • Landsteiner
  • Relative Time
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Key Concepts – Chapter 2 Monohybrid Crosses and Mendel’s Principle of Segregation 1. Terminology used in breeding experiments: a. Parental generation is the P generation. b. Progeny of P generation is the first filial generation, designated F1. c. When F1 interbreed, the second filial generation, F2, is produced. d. Subsequent interbreeding produces F3, F4, and F5 generations. 2. A monohybrid cross involves true-breeding strains that differ in a single trait. 3. To determine whether both parents contribute equally to the phenotype of a particular trait in offspring, a set of reciprocal crosses is performed. By convention, the female parent is given first. 4. In Mendelian genetics, offspring of a monohybrid cross will exactly resemble only one of the parents. This is the principle of uniformity in F1 (Figure 2.5). 5. Traits that disappear in the F1 reappear in the F2. The F2 has a ratio of about one individual with the “reappearing” phenotype to three individuals with the phenotype of the F1. Mendel re...

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