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Animal Science

Animal Science. Lesson: Heredity. Unit: Animals at the Cellular Level. Heredity Terms. Codominance Dominant Heritability Heritability Estimate Incomplete Dominance Probability Punnett Square Qualitative Trait Quantitative Trait Recessive. Estimated Heritability.

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Animal Science

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  1. Animal Science Lesson: Heredity Unit: Animals at the Cellular Level

  2. Heredity Terms • Codominance • Dominant • Heritability • Heritability Estimate • Incomplete Dominance • Probability • Punnett Square • Qualitative Trait • Quantitative Trait • Recessive

  3. Estimated Heritability • Probability is the likelihood that a trait will occur in the offspring of two parents with known genetics • Heritability is the proportion of the total variation (genetic and environmental) due to additive gene effects • An approximation of the passing of traits from parents to offspring is called Heritability Estimate

  4. The different types of traits • Some traits are controlled by just one pair of genes, and others require several pairs of genes for traits to be included within an animals genetics • Qualitative trait is a trait controlled by one pair of genes • Quantitative Trait is a trait controlled by several pairs of genes • Dominant Trait takes priority of expression • Recessive Trait may be passed on to offspring but rarely expressed, except in certain combinations • Incomplete Dominance occurs when genes or alleles are blended and expressed

  5. Punnet Square • The Punnet Square is a technique used for predicting genotypes • It takes the dominant or recessive Traits of each parent and determines what combination of traits their offspring will receive

  6. Homework Assignments • Complete Heredity Stimulation Lab • Complete Rebop Lab • Punnet Square Homework • Due tomorrow at the beginning of class • 3D Animal Cell Project • Make sure you put all your notes and graded assignments in your binder!!!!

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