A cross was made between a plant that has blue flowers and purple seeds to a pla

Question

A cross was made between a plant that has blue flowers and purple seeds to a plant with white flowers and green seeds. The following data was obtained:
F1 genetation: all offspring have blue flowers with purple seeds
A second cross was made between 2 F1 individuals.
F2 generation: 113 blue flowers with purple seeds 49 blue flowers with green seeds 44 white flowers with purple seeds 114 white flowers with green seeds
1) Based on the data, which variations are dominant? _____ and _____. 2) Null hypothesis to be tested? 3) Complete a chi-square analysis 4) Does the data support or refute your hypothesis? Explain. A cross was made between a plant that has blue flowers and purple seeds to a plant with white flowers and green seeds. The following data was obtained:
F1 genetation: all offspring have blue flowers with purple seeds
A second cross was made between 2 F1 individuals.
F2 generation: 113 blue flowers with purple seeds 49 blue flowers with green seeds 44 white flowers with purple seeds 114 white flowers with green seeds
1) Based on the data, which variations are dominant? _____ and _____. 2) Null hypothesis to be tested? 3) Complete a chi-square analysis 4) Does the data support or refute your hypothesis? Explain.
F1 genetation: all offspring have blue flowers with purple seeds
A second cross was made between 2 F1 individuals.
F2 generation: 113 blue flowers with purple seeds 49 blue flowers with green seeds 44 white flowers with purple seeds 114 white flowers with green seeds
1) Based on the data, which variations are dominant? _____ and _____. 2) Null hypothesis to be tested? 3) Complete a chi-square analysis 4) Does the data support or refute your hypothesis? Explain.

Explanation / Answer

Our hypothesis is that blue flowers and purple seeds are dominant traits and they are governed by two genes that assort independently. According to this hypothesis, the F2 generation should yield a ratio of 9 blue flowers, purple seeds : 3 blue flowers, green seeds : 3 white flowers, purple seeds : 1 white flower, green seeds. Because there are a total of 300 offspring produced, the expected numbers
would be

         9/16

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