You are handed a mystery pea plant with tall stems and axial flowers and asked to determine its genotype as quickly as possible. You know that the allele for tall stems (T) is dominant to that for dwarf stems (t) and that the allele for axial flowers (A) is dominant to that for terminal flowers (a). Identify all the possible genotypes for your mystery plant. Describe the one cross you would do in your garden to determine the exact genotype of your mystery plant. While waiting for the results of your cross, you predict the results for each possible genotype listed in part a. Explain how you do this and why this is not called “performing a cross.”
You are handed a mystery pea plant with tall stems and axial flowers and asked to determine its genotype as quickly as possible. You know that the allele for tall stems (T) is dominant to that for dwarf stems (t) and that the allele for axial flowers (A) is dominant to that for terminal flowers (a). Identify all the possible genotypes for your mystery plant. Describe the one cross you would do in your garden to determine the exact genotype of your mystery plant. While waiting for the results of your cross, you predict the results for each possible genotype listed in part a. Explain how you do this and why this is not called “performing a cross.”
Biology 2e
2nd Edition
ISBN:9781947172517
Author:Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher:Matthew Douglas, Jung Choi, Mary Ann Clark
Chapter19: The Evolution Of Populations
Section: Chapter Questions
Problem 18CTQ: Imagine you are trying to test whether a population of flowers is undergoing evolution. You suspect...
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You are handed a mystery pea plant with tall stems and axial flowers and asked to determine its genotype as quickly as possible. You know that the allele for tall stems (T) is dominant to that for dwarf stems (t) and that the allele for axial flowers (A) is dominant to that for terminal flowers (a).
- Identify all the possible genotypes for your mystery plant.
- Describe the one cross you would do in your garden to determine the exact genotype of your mystery plant.
- While waiting for the results of your cross, you predict the results for each possible genotype listed in part a. Explain how you do this and why this is not called “performing a cross.”
- Explain how the results of your cross and your predictions will help you learn the genotype of your mystery plant.
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