Chi Squared Dihybrid This is a question on using the chi squared method. You cro

Question

Chi Squared Dihybrid This is a question on using the chi squared method. You cross pea plants that are dihybrids (heterozygous) for tall and purple flowers (Tt Pp x Tt Pp). To help solve the problem, first determine the expected fractions fo each phenotype category (tall and purple, tall and white, dwarf and purple, dwarf and white). Now assume you collect 96 offspring plants. Determine the expected numbers of plants that would be in each phenotype category. You actually observe these numbers of plants: Tall and purple 68 Tall and white 15 Dwarf and purple-10 Dwarf and white 3 Given these observed numbers and the expected you have for each phenotype, calculate the chi squared value and enter it here. You can round to the nearest whole number Numeric Response

Explanation / Answer

Provided that the dihybrid cross follows the 9:3:3:1 ratio

Observed Expected Tall and purple 68 54 Tall and White 15 18 Dwarf and pruple 10 18 Dwarf and white 3 6 Total 96 96

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