In a certain population of Red Deer, one in 10,000 births results in a fawn with chondrodysplasia (a form of dwarfism). Chondrodysplasia is a recessive condition caused by a mutation in a gene regulating skeletal development.
According to the Hardy-Weinberg principle, the following equations can be used to estimate allele and genotype frequencies within a population:
p2+2pq+q2=1 p^2 + 2pq + q^2 = 1 p2+2pq+q2=1 p+q=1 p + q = 1 p+q=1Use the Hardy-Weinberg equations to calculate the percentage of Red Deer in this population that are heterozygous (carriers) for the chondrodysplasia allele. Give your answer to one significant figure. Show your working.
32 exam-style questions on OCR A A Level Biology Patterns of inheritance. Each one has a worked solution and a mark scheme showing where the marks go.