 HAPPY TUESDAY  F2 BW bw bW Bw

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 HAPPY TUESDAY  F2 BW bw bW Bw Computer BELLWORK: 1. 10 minutes to complete the quiz. 2. Complete the following Dihybrid Cross BW bw bW Bw BbWw BBWw BBww BbWW bbWW bbWw Bbww BbWw x BbWw Hair Color: B: Black b: Blonde Hair Texture: W: Wavy w: Straight Small Group CHAMPS

THE ANSWERS BW bw bW Bw bW Bw BbWw x BbWw BBWW BbWw BBWw BBww BbWW Hair Color: B: Black b: Blonde Bw Bbww HairTexture: W: Wavy w: Straight BbWw BbWw bbww

What is the PHENOTYPIC RATIO for the following Dihybrid Cross? 9:3:3:1 – Because both parents are Heterozygous.

Collect Today Genetics Vocabulary Quiz Assigned Page 80 – Pedigree Practice CORRECTIONS (TOMORROW) Page 70 – Notecard ALL PARTS (Thursday) Most Missed MAKE-UP Quiz (Thursday) Genetics MAKE-UP Quiz (Monday) Page 77 – Family Tree Project Part 2 (Monday) Genetics Exam (Monday) Late Page 78 – Penny Lab (-50%) Page 80 – Pedigree Practice (-30%) Page 74 – Family Tree Project Part 1 (-30%)

Unit 5 – Genetics Definitions Due Thursday (12/3/15) All Parts Due Thursday (12/10/15) PG 70 Allele Hybrid Purebred Co-Dominance Incomplete Dominance Recessive Dihybrid Cross Sex-linked Traits Monohybrid Dominant Multiple Alleles Gene Pedigree Genotype Phenotype Gregor Mendel Polygenic Heterozygous Punnett Square Homozygous

How does the genotype change with a dihybrid cross? Standard Essential Question How does the genotype change with a dihybrid cross? Standard B6F - Predict possible outcomes of genetic combinations such as dihybrid crosses. PG 82 Direct Instruction CHAMPS

Practice in your notes… Identify Assign Match In pea plants, yellow seeds (Y) are dominant over green seeds (y), and rounded peas (R) are dominant over wrinkled peas (r). Cross (what do you have to draw?) a plant that is heterozygous for both traits with a plant that is homozygous recessive for both traits. Draw a Punnett square to show all possible offspring, and determine the genotypic and phenotypic ratios. Y yellow R rounded y green r wrinkled Male = YyRr Female = yyrr

YyRr X yyrr FOIL Male = YR Yr yR yr Female = yr yr yr yr Genotypic = 1:1:1:1 Phenotypic = 1:1:1:1

Genotypic Ratio 1:1:1:1 YR yR yr Yr YyRr yyRr yyrr Yyrr OR 1:1:1:1

4 Yellow/Round: 4 Yellow/Wrinkled: 4 Green/Round: 4 Green/Wrinkled Phenotypic Ratio YR yR yr Yr YyRr yyRr yyrr Yyrr 4 Yellow/Round: 4 Yellow/Wrinkled: 4 Green/Round: 4 Green/Wrinkled OR 1:1:1:1

YyRr X yyrr FOIL Male = YR Yr yR yr Female = yr yr yr yr Genotypic = 1:1:1:1 Phenotypic = 1:1:1:1

. Helpful Information: Two different alleles for a trait Hybrid = Heterozygous Purebred = Homozygous Two different alleles for a trait Two of the same alleles for a trait

Bikini Bottom Dihybrid Crosses We will complete the first four questions together! Heterozygous round eyes, blue body: Hybrid eye shape, purebred roundpants: Purebred roundpants, heterozygous long nose: Rryy Rrss ssLl

Bikini Bottom Dihybrid Crosses 4. SpongeBob’s aunt & her fiancé A. Aunt = Fiancé = B. Aunt = C. ssll SSLl sl, sl, sl, sl SL, Sl, SL, Sl sl + SL = SsLl sl + Sl = Ssll SsLl (half) or Ssll (half)

5A. SpongeBob= YySs SpongeSusie = yyss

5B. SpongeBob= YS, Ys, yS, ys, SpongeSusie = ys, ys, ys, ys,

YS yS ys Ys

YS yS ys Ys YySs yySs yyss Yyss

6a. Patti’s Phenotype 6b. Is it possible…? (What does she look like?) Genotype = pptt 6b. Is it possible…? Genotype = PpTT 6c. Should they get married…?

How does the genotype change with a dihybrid cross? HW: Q#7 Bikini Bottom PG 82 Essential Question How does the genotype change with a dihybrid cross?