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Genes (not Jeans!) Part 3: Punnett Square Intro. PowerPoint created by sfalwell , permission granted for teachers to use if they include link to http://comelearnmore.com/. What do you know about Mendel’s experiments? Why is he called the Father of Genetics?.
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Genes (not Jeans!)Part 3: Punnett Square Intro PowerPoint created by sfalwell, permission granted for teachers to use if they include link to http://comelearnmore.com/
What do you know about Mendel’s experiments? Why is he called the Father of Genetics? Mendel determined that some traits are _____________ and show up more often, while some traits are ______________ and seem to hide or skip generations. dominant recessive
Sneak peak! A look at what’s ahead Genetics Word Problem:Brown eyes are dominant to blue eyes. If mom has a heterozygous genotype and dad has a homozygous recessive phenotype, what is the probability of offspring with blue eyes? Translation:Since Mrs. F’s mom had brown eyes and her dad had blue eyes, figure out the chances that Mrs. F (or her brothers and sisters) would end up with blue eyes.
6 Key Terms • Dominant • Recessive • Genotype • Phenotype • Homozygous • Heterozygous
using Punnett Squares Let’s explain Mendel’s Pea Plant Experiment T T t T t T t t T t T t T t
Genetics Word Problem #1:Brown eyes are dominant to blue eyes. If mom has a heterozygous genotype and dad has a homozygous recessive phenotype, what is the probability of offspring with blue eyes? How to do Punnett Squares We will use Punnett Square Word Problems Set Up #1 in your interactive notebook to work through this problem. Read and Translate the word problem Draw Punnett Square Fill in the Punnett Square for the potential offspring. Answer the question.