BIO 105 1st Edition Lecture 10Outline of Last Lecture I. Resource WorksheetII. What is a gene?III. Mendel – Foundation of geneticsIV. Monohybrid crossesa. Law segregationb. Genetic tool: Punnett’s SquareOutline of Current LectureI. Dihybrid Crossesa. Law of independent assortmentb. Genetics Tool: Pedigree II. Genetic Traits and Conditions in HumansIII. Non- Mendelian Inheritancea. Incomplete Dominanceb. Codominance- ABO blood typingc. Pleiotypic Traitsd. Environmental EffectsIV. Chromosomal Theory InheritanceThese notes represent a detailed interpretation of the professor’s lecture. GradeBuddy is best used as a supplement to your own notes, not as a substitute.a. Linkage and Recombination V. Chromosomal Sex Determinationa. Sex-Linked TraitsCurrent LectureI. Incomplete Dominance: Phenotype combinesa. This happens a lot in flowersi. Ex. Red flower + white flower = pink flowerII. Codominance: Both phenotypes showa. Blood Type, Cows, Dalmatiansi. Ex. A+B blood typeIII. Pleitropic a. One gene, many traitsi. Ex. Sickle cell1. Hemoglobin mutated, changes blood shape2. As a result, tissue damage, different cell shapeIV. Polygenica. One trait, many genesi. Heightii. Skin colorV. Chromosomal Theory of Inheritance a. Linked genes- on the same chromosome. i. They’re closer together and they’re inherited togetherb. Y linked gene: SRYVI. Males have more x linked diseases because females must inherit two X’s with the disease in order to have
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