For Questions 1 8 Consider A Cross Between A True Breeding Pea Plant With Yellow Seeds And A True Breeding Pea Plant Wi 1 (53.64 KiB) Viewed 29 times
For Questions 1 8 Consider A Cross Between A True Breeding Pea Plant With Yellow Seeds And A True Breeding Pea Plant Wi 2 (31.68 KiB) Viewed 29 times
For Questions 1-8, consider a cross between a true-breeding pea plant with yellow seeds and a true breeding pea plant with green seeds (true breeding means homozygous). These two parents are the P generation. The offspring of this cross is the F1 generation. Two F1 offspring are then crossed to produce the F2 generation. Considering the data in Table 14.1 (page 270), which trait, yellow seeds or green seeds, is the dominant trait? Figure 14.8 EXPERIMENT RESULTS P Generation F, Generation Predictions Predicted offspring of F, generation 315 Eggs YYRR 108 Gametes (YR) X Hypothesis of dependent assortment Sperm YYRR YR Vykr %₂ Phenotypic ratio 3:1 101 32 or yyrr TyRr Hypothesis of independent assortment Eggs %( Sperm YYRR YYRYYRR YR YYRYY YyRr YRR YR YRK Yskr Yyyy kr Vyre yykr wwww Phenotypic ratio 9:3:3:1 Phenotypic ratio approximately 9:3:31
Figure 14.8 EXPERIMENT RESULTS Select one: O a. green O b. yellow P Generation F, Generation Predictions Predicted offspring of F, generation 315 Egg 108 Gametes (YR) X Hypothesis of dependent assortment YYRR ½ % Sperm YYRR Yykr Vykryy Phenotypic ratio 3:1 101 32 or yr TyRr Hypothesis of independent assortment Eggs Sperm YYRR YYRYYRR YR YYR YYYyRr Vyrr YRR YR RR R Yyrr yy kr www Phenotypic ratio 9:3:3:1 Phenotypic ratio approximately 9:3:3:1
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