Hardy-Weinberg problems:

1. We have always thought that Rudolph the red-nosed reindeer was a one of a kind. However in the remote reaches of Scandinavia, there has been numerous citings of red-nosed reindeer. A recent study by population genetics reviled that red-nosed reindeers occur 3 out every 100 reindeer. Further DNA analysis has shown that the red-nosed gene is recessively inherited.

• What is the frequency of the recessive allele? Dominant allele?
• What is the percentage of the population that does not have red-noses, but could pass on this gene to its offspring?
• What’s the probability that two non-red nosed reindeer may meet and have red-nosed offspring?

2. During the holiday season the dominantly inherited gene for overspending often times kicks into high gear. Roughly 80% of shoppers in The Shops at Mission Viejo have the overspending gene.

• What percentage of the population is recessive for the overspending gene?
1. What is the frequency of both the dominant and recessive alleles?
• What percentage of the shoppers at The Shops at Mission Viejo are homozygous dominant for this overspending gene?
• What percentage is heterozygous for this overspending gene?

3. Elf is one of the taller elves, but he’s not alone. The allele for increased height is recessively inherited and actually occurs in about 5% of the elf population working in Santa’s workshop.

• What is the frequency of this recessive allele?