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Mizzou BIO_SC 1010 - BIO1010 FS14 L14-Polygenic for Bb

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Welcome to General Principles and Concepts of Biology!Today’s Goals:Next Time…Review: Mendelian GeneticsSlide 5“What is a gene?” – Stated Simply Please take notesIII. Inheritance of TraitsSlide 8Slide 9Slide 10PowerPoint PresentationU2IC3U2IC3: Mixed Up BabiesSlide 14Slide 15Slide 16A heterozygote and a homozygous recessive individual mate. What are the odds that their offspring will possess the dominant phenotype?Slide 18GeneticsInstant Egghead: Genes & BehaviorIII. Inheritance of TraitsSlide 22Welcome to General Principles and Concepts of Biology!BioSci 1010, Sec. 2ANNOUNCEMENTS:Exam #1 essayPick up from frontK-ZMizzou volleyball Tonight @6:30pm, Hearnesvs. Mississippi St.Office hoursFinal day extra credit R-ZToday’s Goals:Readings: Chapter 7, Chapter 8.1III. Inheritance of TraitsB. Mendelian genetics1. What is a gene?2. Dominance3. Predicting offspring4. Genetic diseases5. Non-Mendelian expressionC. Quantitative geneticsNext Time…Readings: Chapter 9IV. Cracking the CodeHow the information in DNA is used to make proteinsReview: Mendelian GeneticsLabel figure to left:GenesHomologous chromosomesHomozygous recessive genotypeHomozygous dominant genotypeHeterozygous genotypeReview: Mendelian GeneticsGenes“What is a gene?” – Stated Simply Please take notes<iframe width="854" height="510" src="//www.youtube.com/embed/5MQdXjRPHmQ" frameborder="0" allowfullscreen></iframe>5. Non-Mendelian inheritance patternsIII. Inheritance of Traits5. Non-Mendelian inheritance patternsa. Codominance: i. Both alleles are fully expressed in heterozygotes.III. Inheritance of Traits5. Non-Mendelian inheritance patternsa. Codominance: i. Both alleles are fully expressed in heterozygotes.ii. Example: ABO blood typesIII. Inheritance of Traitsa. Codominance: i. Both alleles are fully expressed in heterozygotes.ii. Example: ABO blood types- Red blood cells (RBC) have sugar on surface of cell membraneIII. Inheritance of Traitsa. Codominance: ii. Example: ABO blood types-Red blood cells (RBC) have sugar on surface of cell membrane - Different enzymes attach different sugars!- Three alleles (IA, IB, i) give rise to four blood typesPhenotype GenotypeType ASugar AType BSugar BType ABSugars A and BType OiiI AI B I BI B or I Bi I AI A or I AiU2IC3U2 IC3Name 1 Student #1 Signature 1Name 2 Student #2 Signature 2Keep your card - turn it in at the end of the hour!U2IC3: Mixed Up BabiesFour babies were accidentally mixed up in the maternity ward. The blood types of the babies were known to be A, B, O, and AB. The blood types of the four sets of parents were determined. Figure out which baby belongs to each set of parents!Parent Blood Types (phenotypes)Possible Genotypes of Their BabyWhich baby is theirs?AB x OA x OA x ABO x O5. Non-Mendelian inheritance patternsa. Codominance b. Incomplete dominanceIII. Inheritance of Traits5. Non-Mendelian inheritance patternsb. Incomplete dominancei. Dominant allele is not fully dominantIII. Inheritance of Traits5. Non-Mendelian inheritance patternsb. Incomplete dominancei. Dominant allele is not fully dominant ii. Phenotype of heterozygote is intermediate to homozygotesiii. Example: snapdragon colorIII. Inheritance of Traits© 2013 Pearson Education, Inc.A heterozygote and a homozygous recessive individual mate. What are the odds that their offspring will possess the dominant phenotype?A. 100%B. 75%C. 50%D. 25%© 2013 Pearson Education, Inc.A heterozygote and a homozygous recessive individual mate. What are the odds that their offspring will possess the dominant phenotype?A. 100%B. 75%C. 50%D. 25%R rr Rr rrr Rr rrIII. Inheritance of TraitsB. Mendelian geneticsC. Quantitative geneticsGeneticsTurn to your neighbor: Which phenotypes are affected by the environment? Can these be genetically controlled?Instant Egghead: Genes & Behavior<iframe width="854" height="510" src="//www.youtube.com/embed/uvk2g9hJMTs" frameborder="0" allowfullscreen></iframe>C. Quantitative genetics1. Individuals in a population tend to show a range of small differences in most traits: continuous variation III. Inheritance of TraitsFree AttachedEarlobe TypeNumber of PeopleQualitative


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