60 likes | 242 Vues
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.
E N D
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 • 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
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
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
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!!!!