In a population of 1000 individuals, 25% of individuals show the phenotype for sickle cell anaemia (genotype - ss).
(a) Assuming the population meets Hardy-Weinberg equilibrium, how many individuals would be carriers of the sickle cell allele but will not show the sickle cell phenotype?
(b) Can the Hardy-Weinberg principle be used to predict the frequency of the presence of the sickle cell allele in a sperm cell? Why or why not?