In a wild population of the pocket mouse (Chaetodipus intermedius\textit{Chaetodipus intermedius}Chaetodipus intermedius) inhabiting a dark basaltic lava flow, fur coat color is controlled by a single gene with two alleles. The allele for dark-colored fur (DDD) is completely dominant over the allele for sandy-colored fur (ddd).
A field survey of a representative sample of 800 mice from this population reveals that 728 individuals exhibit dark-colored fur, while the remaining individuals have sandy-colored fur.
Assuming the population is in Hardy–Weinberg equilibrium for this locus, calculate the percentage of mice in this population that are heterozygous (DdDdDd) for the fur color gene.
Practise AQA A Level Biology Populations (A-level only) with exam-style questions for A Level Biology. 23 questions, matched to the AQA A Level Biology (7402) specification and written in Paper 1, Paper 2 and Paper 3 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.
