February 5, Week # 4 NB-86 Learning Target: I will Homework: Agenda: complete a Punnett Square to predict genotypes and phenotypes of the offspring. Homework: NB-86 Agenda: Check homework (NB-87 and 88) Grade homework Grades Essential Question: Why would you use a Punnett Square?

Learning Target: I will Complete a Punnett Square to predict genotypes and phenotypes of offspring. A genotype is the DNA coding for a trait (EE) A phenotype is the trait we observe (free earlobes) A percentage is an amount compared to 100. A ratio is a relation between 2 numbers

Set up the cross: Rr x rr. Round seeds are dominant to wrinkled seeds Set up the cross: Rr x rr. Round seeds are dominant to wrinkled seeds. What are the genotypes and phenotypes of the parents? rr Phenotype= wrinkled seeds Genotype= Female gametes Punnett Square Parents r r r round seeds Rr Offspring Male gametes Genotype= Phenotype= R

Phenotype= wrinkled seeds Set up the cross: Rr x rr. Round seeds are dominant to wrinkled seeds. Next, complete the cross Female gametes Phenotype= wrinkled seeds Genotype= rr Punnett Square Parents r r r r r r r Phenotype= round seeds Genotype= Rr Offspring Male gametes r R r R R

Phenotype= wrinkled seeds Set up the cross: Rr x rr. Round seeds are dominant to wrinkled seeds. What are the phenotypes of the offspring? Female gametes Phenotype= wrinkled seeds Genotype= rr Punnett Square Parents r r r r r r r wrinkled wrinkled Phenotype= round seeds Genotype= Rr Offspring Male gametes r R r R R round round

Phenotype= wrinkled seeds Set up the cross: Rr x rr. Round seeds are dominant to wrinkled seeds. What percentage of the offspring will be round? Female gametes Phenotype= wrinkled seeds Genotype= rr Punnett Square Parents r r r r r r r wrinkled wrinkled ¼ x 100= 25% ¼ x 100= 25% Phenotype= round seeds Genotype= Rr Offspring Male gametes R r R r R round round ¼ x 100= 25% ¼ x 100= 25% 25% + 25%= 50% will be round

Learning Target: I will Complete a Punnett Square to predict genotypes and phenotypes of offspring. A genotype is the DNA coding for a trait (EE) A phenotype is the trait we observe (free earlobes) A percentage is an amount compared to 100. A ratio is a relation between 2 numbers

Correct HW NB-87 and 88

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Grades Look at your grade. Fill out the Tracking My Own Learning sheet and graph your grade.

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Fill out the weekly planner. Don’t forget the homework on NB-86! Essential Question: Why would you use a Punnett Square?