BIO 105 1st Edition Lecture 9 Outline of Last Lecture I. Sexual Reproductiona. GametesII. Meiosis – a Unique processa. Prophase Ib. Metaphase c. Anaphase Id. Telophase IIII. Meiosis IIa. Prophase IIb. Metaphase IIc. Anaphase IId. Telophase IIIV. Creating Genetic DiversityV. Genetic Alternations VI. MutationsOutline of Current Lecture I. Resource WorksheetII. What is a gene?III. Mendel – Foundation of geneticsIV. Monohybrid crossesa. Law segregationb. Genetic tool: Punnett’s SquareV. Dihybrid Crossesa. Law of independent assortmentb. Genetics Tool: Pedigree VI. Genetic Traits and Conditions in HumansThese 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.VII. Non- Mendelian Inheritancea. Incomplete Dominanceb. Codominance- ABO blood typingc. Pleiotypic Traitsd. Environmental EffectsVIII. Chromosomal Theory Inheritancea. Linkage and Recombination IX. Chromosomal Sex Determinationa. Sex-Linked TraitsCurrent LectureI. Hereditya. Tendency for traits to pass from parents to offspringb. Genes are located on chromosomes, they’re split in meiosis, egg and sperm create different gene combinations.II. What is a gene?a. Place on a chromosome that creates a protein.b. Locusi. Genetic addressIII. Alleles a. Dominant allele is expressed physically b. Recessive allele is carried, not expressed.IV. Genotypea. The allele compositionV. Phenotypea. The physical expression of an alleleVI. Homozygous a. 2 same allelesVII. Heterozygousa. 2 different allelesVIII. Mendela. 1866i. Experimented with pea platsii. Observed heritabilityb. Hypothesisi. There are multiple versions, or alleleii. Homozygous or heterozygous allelesiii. Only 1 allele showsiv. Alleles come from each parentc. True breedingi. Homozygous d. Hybrids i. Heterozygouse. Experiment 1i. White -> Whiteii. Purple -> Purpleiii. Purple + White -> Purplef. P Generation i. Parental, always true breedingg. F1 Generationi. Breeding offspring of p generationh. F2 Generationi. Breeding offspring of F1 generationIX. Genetic Toolsa. Punnett Squarei. Shows possible gametesii. Shows possible offspringiii. Genotypic Ratioiv. Steps1. # of Homozygous dominant2. # of Heterozygous dominant3. # of Homozygous recessive 4. Phenotypic Ratio5. # of Phenotype 16. # of Phenotype 2X. Examplesa. Cystic Fibrosisi. 2 HeterozygousXI. Steps sto determining exmplesa. Determine dominant/ recessive traitsb. Create a key (letters)c. Determine parental genotyped. Punnett squaree. Analyze results (ratios)f. Answer correct questions XII. Carrier – carries 1 recessive
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