Imagine a population of 100 snails in which shell colour is controlled by two alleles : B ( black) and b (yellow) . 20 of the snails are yellow (b/b) and 80 are black (B/B or B/b) . Of the 80 black snails , 30 are homozygous and 50 are heterozygous .
A. How many of the loci for this gene are occupied by the B allele ?
B.what is the allelic frequency of B ?
C. Assuming sexual reproduction with random mating , no geneflow and no selection , what will be the frequency of yellow snails in the next generation of yellow snails in the next generation of population ?
D.what is the total no. Of loci for the gene for shell colour in this population ?