Genetics Review Pedigree Chart Punnett Square Genotype Phenotype

Genetics Review

Pedigree Chart Punnett Square Genotype Phenotype 10 10 20 20 30 30 40 40 50 50 Vocabulary

Genetics The study of heredity a. Genetics b. Trait c. Pedigree Chart Vocabulary 10

A diagram used to trace a trait through generations of a family What is a pedigree chart? Pedigree Chart 10

BB, Bb, Bb B Complete the Punnett Square. B B b Punnett Square 10

Genotype Organism’s gene or genetic combination (Rr, RR, rr) a. Genotype b. Phenotype Geno/Phenotype 10

Dominant Gene that “takes over” a. Recessive b. Dominant c. Purebreed Vocabulary 20

Mark Who is married to Sara? Pedigree Chart 20

25 % Using the Punnett Square to the right, what is the percent (%) chance the offspring will have light hair? a. b. c. d. 25% 50% 75% 100% DD Dd Dd dd D = dark hair d = light hair Punnett Square 20

Phenotype What an organism looks like (physical appearance) Brown hair Blue Eyes Geno/Phenotype 20

Replication When DNA makes a copy of itself a. Heredity b. Replication c. Offspring Vocabulary 30

Matt Who is married to Kim? Pedigree Chart 30

75 % Using the Punnett Square to the right, what is the percent (%) chance the offspring will have dark hair? a. b. c. d. 25% 50% 75% 100% DD Dd Dd dd D = dark hair d = light hair Punnett Square 30

BB Using the key below, what would be the GENOTYPE of a pure dominant gene? B = brown eyes b = blue eyes Geno/Phenotype 30

Mutation A change in the base sequence of DNA a. Trait b. Offspring c. Mutation Vocabulary 40

Blue Eyes What trait is being expressed by Phil and Kara? Pedigree Chart 40

50 % Using the Punnett Square to the right, what is the percent (%) chance the offspring being hybrid? a. b. c. d. 25% 50% 75% 100% DD Dd Dd dd D = dark hair d = light hair Punnett Square 40

Blue Eyes Using the key below, what would be the PHENOTYPE of a person with a bb gene? B = brown eyes b = blue eyes Geno/Phenotype 40

Heredity Passing of characteristics from parent to offspring a. Heredity b. Trait c. Gene Vocabulary 50

Sarah Who gave Kim her blue eyes? Pedigree Chart 50

25% Using the Punnett Square to the right, what is the percent (%) chance the offspring being pure recessive? a. b. c. d. 25% 50% 75% 100% DD Dd Dd dd D = dark hair d = light hair Punnett Square 50

Both carry the dominant (B) gene Using the key below, why would a person with BB and a person with Bb both have brown eyes? B = brown eyes b = blue eyes Geno/Phenotype 50