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Figure 11.2 Page 178
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  1. Figure 11.2Page 178

  2. Figure 11.4Page 179 A pair of homologous chromosomes A gene locus A pair of alleles Three pairs of genes

  3. Homozygous recessive parent Homozygous dominant parent Stepped ArtFigure 11.4Page 180 A a A a (chromosomes duplicated before meiosis) a A a A A a A a meiosis I A A a a A A a a meiosis II a a a a A A A A gametes A fertilization produces heterozygous offspring a

  4. Figure 11.5Page 180 Trait Studied Dominant Form Recessive Form F2 Dominant-to- Recessive Ratio SEED SHAPE 2.96:1 5,474 round 1,850 wrinkled SEED COLOR 3.01:1 6,022 yellow 2,001 green POD SHAPE 2.95:1 882 inflated 299 wrinkled POD COLOR 2.82:1 428 green 152 yellow FLOWER COLOR 3.15:1 705 purple 224 white FLOWER POSITION 3.14:1 651 long stem 207 at tip STEM LENGTH 2.84:1 787 tall 277 dwarf

  5. In-text figurePage 178 POSSIBLE EVENT: PROBABLE OUTCOME: sperm A meets egg A sperm A meets egg a sperm a meets egg A sperm a meets egg a 1/4 AA offspring 1/4 Aa 1/4 Aa 1/4 aa

  6. Stepped ArtFigure 11.6Page 181 female gametes male gametes Aa aa a A a A A a A a Aa AA Aa A A A A a aa Aa aa Aa aa a a a

  7. Figure 11.7Page 181 True-breeding homozygous recessive parent plant F1PHENOTYPES aa True-breeding homozygous dominant parent plant Aa Aa a a Aa Aa A AA A Aa Aa Aa Aa An F1 plant self-fertilizes and produces gametes: F2PHENOTYPES Aa AA Aa A a A AA Aa a Aa aa Aa aa

  8. In-text figurePage 182 TRUE- BREEDING PARENTS: purple flowers, tall white flowers, dwarf x AABB aabb GAMETES: AB AB ab ab AaBb F1 HYBRID OFFSPRING:

  9. Stepped ArtFigure 11.8Page 182 OR C C c c c c C C metaphase I d d D D D D d d metaphase II C C C C c c c c D D d d d d D D d d D D D d d D c c C C c C c C 1/4 Cd 1/4 cD 1/4 CD 1/4 cd gametes gametes

  10. Figure 11.9 (1)Page 183 X ab AABB purple- flowered tall parent (homozygous dominant) aabb white- flowered dwarf parent (homozygous recessive) AB F1 OUTCOME: All F1 plants purple-flowered, tall (AaBb heterozygotes) AaBb

  11. Stepped ArtFigure 11.9(2)Page 183 AaBb AaBb 1/4 AB 1/4 Ab 1/4 aB 1/4 ab purple-flowered, tall 1/4 AB 1/16 AABB 1/16 AABb 1/16 AaBB 1/16 AaBb purple-flowered, dwarf white-flowered, tall 1/16 AaBb 1/4 Ab 1/16 AAbb 1/16 Aabb 1/16 AABb white-flowered, dwarf 1/16 AaBB 1/4 aB 1/16 aaBB 1/16 aaBb 1/16 AaBb 1/4 ab 1/16 Aabb 1/16 aaBb 1/16 aabb 1/16 AaBb

  12. Stepped ArtFigure 11.10Page 184 homozygous parent homozygous parent X All F1 are heterozygous X F2 show three phenotypes in 1:2:1 ratio

  13. Figure 11.11Page 184 ABO Blood Typing Range of genotypes: IA IA IB IB or or IA i IA IB IB i ii Blood types: A AB B O

  14. Figure 11.12Page 185 Ribbon model for two calcium-binding domains of fibrillin

  15. Stepped ArtFigure 11.13Page 186 F2puppies BE Be bE be BE black BBEE BBEe BbEE BbEe Be BBee BbEe Bbee BBEe brown bE BbEe bbEE bbEe BbEE yellow be Bbee bbEe bbee BbEe BBEE X bbee F1puppies are all BbEe

  16. Figure 11.15Page 187 Comb Shape in Poultry RRpp (rose comb) rrPP (pea comb) P: X RrPp (all walnut comb) F1: F2: 9/16 walnut 3/16 rose 3/16 pea 1/16 single rrpp rrPP rrPp RRpp Rrpp RRPP RRPp RrPP RrPp

  17. Figure 11.17bPage 189 line of bell-shaped curve indicates continuous variation in population Number of individuals with some value of the trait Range of values for the trait

  18. Stepped ArtFigure 11.18Page 190

  19. 60 Figure 11.19Page 190 Mature cutting at high elevation (3,050 meters) Height (centimeters) 0 60 Mature cutting at medium elevation (1,400 meters) Height (centimeters) 0 60 Mature cutting at low elevation (30 meters above sea level) Height (centimeters) 0