OurBigBook.comSite Source code

Past exam of the mathematics course of the University of Cambridge / 2025 / ii / Paper 2 / 5K / 2 / Solution

No dominance says that mean yield is affine in the number of

A

alleles:

μ_{aa} = α, μ_{A a} = α + δ, μ_{AA} = α + 2 δ .

Equivalently,

2 μ_{A a} = μ_{aa} + μ_{AA}

. Fit that reduced model and compare it with Model 1 using

r
model3 <- lm(yield ~ count, data = potato)
anova(model3, model1)

The resulting one-degree-of-freedom F-test tests the no-dominance constraint against unrestricted genotype means.

Solved by gpt-5.6-sol high.

 Ancestors (11)