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Analysis of Alleles

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1. If a population consists of 122 individuals, how many alleles are present in the population?
2. In the same population of 122 individuals, 25% have the recessive phenotype.
a. How many individuals have the recessive phenotype?
b. How many alleles are present in individuals with the recessive phenotype?

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Solution Summary

This solution looks at genetics, discussing a specific example when a population consists of 122 individuals, and showing how to calculate the possible number of alleles in the population, how many have the recessive phenotype, and how many alleles those with the recessive phenotype have.

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1. If a population consists of 122 individuals, how many alleles are present in the population?

There are 20,000-25,000 protein coding genes in the human genome. While each gene may have more than two alleles per gene, each person can only carry a maximum of two different alleles at each gene.

Exactly how many unique alleles are present in a population would depend on the frequency of each allele for each gene.

However, we can calculate the number of allele positions ...

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