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Monohybrid Crosses in Maize Cobs

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Introduction

Henry Poon 12D Looking at Monohybrid Crosses in Maize Cobs ________________ Row Number of Colored Corn Kernels ± 1 Number of Colorless Corn Kernels ± 1 1 30 13 2 29 13 3 26 12 4 32 10 5 35 6 6 28 15 Mean = 30 Mean = 12 Punnett Grid to Show Expected Offspring Phenotypic Ratio of Seed Colour between Heterozygous and Heterozygous C c C CC Cc c Cc cc Parental ...read more.

Middle

However the expected phenotypic ratio is 1 colourless corn kernel: 3 coloured corn kernels. The ratio obtained from my results and the expected ratio do not closely match because as the number of colorless corn kernels increases in both ratios, the difference between the number of colored corn kernels gets bigger and bigger. So for example if the number of colourless corn kernels was 50, the number of coloured corn kernels would be 125 and ...read more.

Conclusion

As you can see the difference increases by 25 by each time. Average Formula: Figure 1.1 Calculation for the Average Number of Colored Corn Kernels n x ∑x 1 30 180 2 29 3 26 4 32 5 35 6 28 Standard Deviation Formula: Figure 1.3 Standard Deviation Calculations for Colourless Corn Kernels n x xÌ x- xÌ ∑( x- xÌ)2 1 13 12 -1 64 2 13 -1 3 12 0 4 10 2 5 6 7 6 15 -3 ...read more.

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