The clamshell orchid can have a dorsal sepal that is either bright purple or yellow, and may have ventral sepals that are curly or flat. Assume that each trait is caused by a single gene in which one allele is completely dominant to the other and that these genes are independently assorting. The following table shows the resulting offspring produced by mating parents of the indicated phenotypes. Cross 1 Cross 2 Cross 3 Parent 1 purple, curly purple, flat purple, curly Parent 2 yellow, flat purple, flat yellow, flat purple, curly Which colour (purple or yellow) is the dominant colour? 11 Which sepal shape (curly or flat) is the recessive shape? 20 What would be an appropriate symbol for the purple allele? What would be an appropriate symbol for the yellow allele? What would be an appropriate symbol for the flat allele? 0 What would be an appropriate symbol for the curly allele? Offspring Phenotypes yellow, curly purple, flat 9 59 43 12 7 0 yellow, flat 11 22 0

The clamshell orchid can have a dorsal sepal that is either bright purple or yellow, and may have ventral sepals that are curly or flat. Assume that each trait is caused by a single gene in which one allele is completely dominant to the other and that these genes are independently assorting. The following table shows the resulting offspring produced by mating parents of the indicated phenotypes. Cross 1 Cross 2 Cross 3 Parent 1 purple, curly purple, flat purple, curly Parent 2 yellow, flat purple, flat yellow, flat purple, curly Which colour (purple or yellow) is the dominant colour? 11 Which sepal shape (curly or flat) is the recessive shape? 20 What would be an appropriate symbol for the purple allele? What would be an appropriate symbol for the yellow allele? What would be an appropriate symbol for the flat allele? 0 What would be an appropriate symbol for the curly allele? Offspring Phenotypes yellow, curly purple, flat 9 59 43 12 7 0 yellow, flat 11 22 0

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Description: The clamshell orchid can have a dorsal sepal that is either bright purple or yellow, and may have ventral sepals thatare curly or flat. Assume that each trait is caused by a single gene in which one allele is completely dominant to theother and that

Concepts of Biology

1st Edition

ISBN:9781938168116

Author:Samantha Fowler, Rebecca Roush, James Wise

Publisher:Samantha Fowler, Rebecca Roush, James Wise

Chapter8: Patterns Of Inheritance

Section: Chapter Questions

Problem 2ACQ: Figure 8.10 In pea plants, purple flowers (P) are dominant to white (p), and yellow peas (Y) are...

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