Lecture_4 _Monohybrids_2011

Lecture_4 _Monohybrids_2011 - Monohybrid Crosses...

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Monohybrid Crosses Jan 19, 2011
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Announcements
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Review Different copies of the same gene on chromosome pairs are called ALLELES Mitosis results in two daughter cells with the SAME complement of chromosomes as the parental cell Meiosis results in cells with HALF the chromosome complement of parental cell CROSSOVERS occur during meiosis Parental chromosomes assort INDEPENDANTLY in meiosis
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Gregor Johann Mendel (1822 – 1884) Mendel developed a robust theory of PARTICULATE inheritance Mendel’s translated work available on Blackboard (optional reading for the enthusiast).
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Mendel’s Peas: Pisum sativum - Can reproduce by selfing or out-crossing - Cheap - Easy to obtain an grow - Fast generation time - Produce lots of progeny - Have lots of phenotypic variation
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Mendel’s Set-up Worked with common garden pea Focused on 7 traits round v. wrinkled seeds yellow v. green seeds purple v. white flowers full v. collapsed pods green v. yellow pods axial v. end flowers long v. short stems Established pure-bred lines Some controversy
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Pisum sativum: Reproduction
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This note was uploaded on 02/17/2011 for the course BIOL 202 taught by Professor Kieber-hogan during the Spring '08 term at UNC.

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Lecture_4 _Monohybrids_2011 - Monohybrid Crosses...

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