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Punnett Squares

Punnett Squares. Homework Packet Chapter 12. Monohybrid Cross #1 Eye Color. T = Brown t = blue Mother Homozygous Brown Father Heterozygous Brown Genotype = Phenotype = . Monohybrid Cross #2 Height. H = Tall h = short Mother = Homozygous short Father = Heterozygous Tall Genotype =

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Punnett Squares

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  1. Punnett Squares Homework Packet Chapter 12

  2. Monohybrid Cross #1Eye Color • T = Brown t = blue • Mother Homozygous Brown • Father Heterozygous Brown • Genotype = • Phenotype =

  3. Monohybrid Cross #2Height • H = Tall h = short • Mother = Homozygous short • Father = Heterozygous Tall • Genotype = • Phenotype =

  4. Monohybrid Cross #3Eye Color • T = Brown t = blue • Mother = Homozygous blue • Father = Heterozygous Brown • Genotype = • Phenotype =

  5. Dihybrid Cross #4Eye Color & Height • T = Brown t = blue • H = Tall h = short • Mother • Heterozygous Brown & Homozygous tall • Father • Heterozygous Brown & Heterozygous Tall

  6. Dihybrid Cross #4Eye Color & Height Genotype = Phenotype=

  7. Dihybrid Cross #5Eye Color & Height • T = Brown t = blue • H = Tall h = short • Mother • Heterozygous Brown & Homozygous short • Father • Homozygous blue & Heterozygous Tall

  8. Dihybrid Cross #5Eye Color & Height • Genotype = Phenotype =

  9. Trihybrid Cross #6Eye Color & Height & Hair Color • T = Brown t = blue • H = Tall h = short • D = Dark d = light • Mother • Hetero Brown & Homo short & Homo Dark • Father • Hetero Brown & Hetero Tall & Homo light

  10. Trihybrid Cross #6Eye Color & Height & Hair Color

  11. Trihybrid Cross #6Eye Color & Height & Hair Color • Genotype = • Phenotype =

  12. Monohybrid Cross #7Eye color • T = Brown t =blue • Mother = • Father = • Genotype = • Phenotype =

  13. Monohybrid Cross #8Height • T = Tall t = short • Mother = • Father = • Genotype = • Phenotype =

  14. Dihybrid Cross #9Eye color & Height • T = Brown t = blue • H = Tall h = short • Mother = • Father = • Genotype = 4:4:4:4 • Phenotype= 8:8

  15. Dihybrid Cross #9Eye color & Height

  16. Dihybrid Cross #10Eye color & Height • B = Brown b = blue • H = Tall h = short • Mother • Heterozygous Brown & • Father • Homozygous short & • Genotype = • Phenotype = 8:8

  17. Dihybrid Cross #10Eye color & Height

  18. Trihybrid Cross #11Eye color & Height & Hair color • T = Brown t = blue • H = Tall h = short • D = Dark d = light • Mother • Hetero Brown & & • Father • Homo Tall & Hetero Dark & • Genotype = • Phenotype =

  19. Trihybrid Cross #11Eye color & Height & Hair color

  20. Trihybrid cross #12 MathematicalEye color & Ear lobes & Height • B = Brown b = blue • Q = attached q = unattached • T = Tall t = short • Mother = Bb Qq TT • Father = bb QqTt • Genotype = ? • Phenotype = ?

  21. Trihybrid cross #12 MathematicalEye color & Ear lobes & Height • Eye color • 2/4 Bb • 2/4 bb

  22. Trihybrid cross #12 MathematicalEye color & Ear lobes & Height • Ear lobes • ¼ QQ • 2/4 Qq • ¼ qq

  23. Trihybrid cross #12 MathematicalEye color & Ear lobes & Height • Hair color • 2/4 Hh • 2/4 hh

  24. Trihybrid cross #13 MathematicalEye color & Ear lobes & Height • B = Brown b = blue • Q = attached q = unattached • T = Tall t = short • Mother =Bb qqtt • Father = Bb Qq TT • Genotype =? • Phenotype =?

  25. Trihybrid cross #13 MathematicalEye color & Ear lobes & Height • Eye color • ¼ BB + 2/4 Bb + ¼ bb • Ear lobes • 2/4 Qq + 2/4 qq • Height • 4/4 Tt

  26. Hardy-Weinberg (dual allele) • p2 + 2pq + q2 = 1 • p2 = pp = Dominanat traits • pq = hybrid traits • q2 = qq = recessive traits • p + q = 1

  27. Hardy-Weinberg • 1000 people • 217 have blue eyes (bb) • FIND • Percentage of dominant genes • B • Percentage of homozygous brown • BB

  28. H-W dual allele • 97 of 527 owls ear feather curl • p2+ 2pq + q2 = 1 • q2 = 97/527 = 18.40% • q2 = 0.1840 • q = 0.4289 = 42.89%

  29. H-W dual allele • 97 of 527 owls ear feather curl • p2 = • AA = • 2pq = • Aa = • q2 = • aa =

  30. H-W (quad Allele) • 1.6 % of all the worlds Bengal tigers are born as albinos (aaaa). What are the % of the other possible allele combinations? • p4 + 4p3q + 6p2q2 + 4 pq3 + q4 = 1

  31. H-W Quad Allele • q4= 1.6% = 0.016 • p4+ 4p3q + 6p2q2 + 4 pq3 + q4 = 1 • q = .355 • p + q = 1 • .355 + p = 1 • p = 0.645

  32. H-W quad allele • p4 + 4p3q + 6p2q2 + 4 pq3 + q4 = 1 • p = 0.645 q = 0.355 • p4 (AAAA) = • 4p3q (AAAa) = • (AAAa) = • 6p2q2 (AAaa) = • (AAaa) =

  33. H-W Quad Allele • p4 + 4p3q + 6p2q2 + 4 pq3 + q4 = 1 • p = 0.645 q = 0.355 • 4 pq3 (Aaaa) = • (Aaaa) = • q4 (aaaa) = • (aaaa) =

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