CATALYST The CATALYST is to be done independently and silently. Answer the following questions in your notebook: 1. What is the relationship between genotype and phenotype? What is the relationship between dominant and recessive alleles? TIME REMAINING: 7:00 MINUTES

CATALYST The CATALYST is to be done independently and silently. Answer the following questions in your notebook: 1. What is the relationship between genotype and phenotype? What is the relationship between dominant and recessive alleles? TIME REMAINING: 6:00 MINUTES

CATALYST The CATALYST is to be done independently and silently. Answer the following questions in your notebook: 1. What is the relationship between genotype and phenotype? What is the relationship between dominant and recessive alleles? TIME REMAINING: 5:00 MINUTES

CATALYST The CATALYST is to be done independently and silently. Answer the following questions in your notebook: 1. What is the relationship between genotype and phenotype? What is the relationship between dominant and recessive alleles? TIME REMAINING: 4:00 MINUTES

CATALYST The CATALYST is to be done independently and silently. Answer the following questions in your notebook: 1. What is the relationship between genotype and phenotype? What is the relationship between dominant and recessive alleles? TIME REMAINING: 3:00 MINUTES

CATALYST The CATALYST is to be done independently and silently. Answer the following questions in your notebook: 1. What is the relationship between genotype and phenotype? What is the relationship between dominant and recessive alleles? TIME REMAINING: 2:00 MINUTES

CATALYST The CATALYST is to be done independently and silently. Answer the following questions in your notebook: 1. What is the relationship between genotype and phenotype? What is the relationship between dominant and recessive alleles? TIME REMAINING: 1:00 MINUTES

CATALYST Silently and on your own, complete the task below When you are finished, put your pencil down and look up. Remain silent to allow others to finish. Answer the following questions: 2. What is the combination of inherited alleles? A. heterozygote B. phenotype C. genotype D. chromosome 3. What is the expression of traits? A. phenotype B. genotype C. allele D. homozygous TIME REMAINING: 2:00 MINUTES

CATALYST Silently and on your own, complete the task below When you are finished, put your pencil down and look up. Remain silent to allow others to finish. Answer the following questions: 2. What is the combination of inherited alleles? A. heterozygote B. phenotype C. genotype D. chromosome 3. What is the expression of traits? A. phenotype B. genotype C. allele D. homozygous TIME REMAINING: 1:00 MINUTES

CATALYST The CATALYST is to be done independently and silently. Answer the following questions in your notebook: 1. What is the relationship between genotype and phenotype? What is the relationship between dominant and recessive alleles?

CATALYST Silently and on your own, complete the task below When you are finished, put your pencil down and look up. Remain silent to allow others to finish. Answer the following questions: 2. What is the combination of inherited alleles? A. heterozygote B. phenotype C. genotype D. chromosome 3. What is the expression of traits? A. phenotype B. genotype C. allele D. homozygous

HOMEWORK 1. Intro to Punnett Squares HW 2. Vocab Quiz Friday 3. Formative Friday

Vocabulary Review:

VocabularyReview Vocabulary Review Trait Trait: A characteristic (what you look like) Gene Gene: A piece of DNA that controls a trait Allele Allele: Version (type) of a gene

Vocabulary Review Genotype Genotype: your genes for a trait Phenotype Phenotype: your trait Dominant Dominant: ALWAYS shown (capital letter) Recessive Recessive: only shown with another recessive (lowercase letter)

Vocabulary Review Heterozygous Heterozygous: two different alleles (Bb) Homozygous Homozygous: two of the same allele (BB, bb)

Review:

Green peas (G) are dominant to yellow peas (g) in pea plants. A heterozygous pea plant is crossed with a homozygous dominant pea plant. Example 1

Green peas (G) are dominant to yellow peas (g) in pea plants. A heterozygous pea plant is crossed with a homozygous dominant pea plant. Green (G) = dominant; yellow (g) = recessive Step 1: write down dominant allele

Green peas (G) are dominant to yellow peas (g) in pea plants. A heterozygous pea plant is crossed with a homozygous dominant pea plant. Step 2: make a genotype/phenotype table for the problem GenotypePhenotypeTerm GGgreen homozygous dominant Gggreenheterozygous ggyellow homozygous recessive

Green peas (G) are dominant to yellow peas (g) in pea plants. A heterozygous pea plant is crossed with a homozygous dominant pea plant. Step 3: Read problem and write down genotypes of the parents Parents: Gg X GG

Green peas (G) are dominant to yellow peas (g) in pea plants. A heterozygous pea plant is crossed with a homozygous dominant pea plant. Step 4: solve the Punnett square

Punnett Squares:

Punnett squares let you predict the genotypes of the children

In a Punnett Square, 1 parent’s alleles go on the top and the other parent’s alleles go on the left side

Example: A man with the genotype Bb is crossed with a woman with the genotype BB Parents: Bb X BB Mom DadBb B B BBBb BBBb

Solving Punnett Squares:

Brown eyes (B) is dominant to blue eyes (b): Mom Dad B b B B BBBb BBBbBBBb bb 2/4 or 50% 0/4 or 0%

Brown eyes (B) is dominant to blue eyes (b): Mom Dad B b B b BBBb BbbbBBBb bb 1/4 or 25% 2/4 or 50% 1/4 or 25%

Brown eyes (B) is dominant to blue eyes (b): Mom Dad B b b b Bbbb BbbbBBBb bb 0/4 or 0% 2/4 or 50%

Phenotype Ratios:

Phenotype: Your trait (what you look like)

Brown eyes (B) is dominant to blue eyes (b):Bb B B BBBb BBBb BBBb bb 2/4 or 50% 0/4 or 0% Brown:Blue: 100% 0%

Brown eyes (B) is dominant to blue eyes (b): B b B b BBBb BbbbBBBb bb 1/4 or 25% 2/4 or 50% 1/4 or 25% Brown:Blue: 75% 25%

Brown eyes (B) is dominant to blue eyes (b): B b b b Bbbb BbbbBBBb bb 0/4 or 0% 2/4 or 50% Brown:Blue: 50%

EXIT TICKET 1. Write down the alleles 2. Complete the genotype/phenotype table GenotypePhenotypeTerm Red flowers (R) are dominant to white flowers (r) in roses. A homozygous dominant rose is crossed with a homozygous recessive rose.

EXIT TICKET 3. Parents: ______ x ______ 4. Solve the Punnett square 5. Provide the genotype %s and phenotype %s: RR: red roses: Rr: white roses: rr: Red flowers (R) are dominant to white flowers (r) in roses. A homozygous dominant rose is crossed with a homozygous recessive rose.