Genetics
Dominant & Recessive Traits
Introduction
Introduction
Individuals receive two versions of each gene, known as alleles, from each parent. If the alleles of a gene are different, and only one allele is expressed, it is known the dominant gene. The effect of the other allele, called recessive, is masked.
Analysis
Analysis
Open the Results of Class Phenotype Survey. and create a bar chart which shows the frequency of each phenotype. Color the dominant traits red, and the recessive traits blue.
Open your own copy of the survey data.
Interpretation
Interpretation
Which phenotypes are the most common in the population? Which phenotypes are the rarest?
Are phenotypes of dominant alleles always more common than phenotypes of recessive alleles? Explain.
Explain the difference between allele dominance and frequency.