- Depending on the number of alleles involved, two to three distinct phenotypes are generally observed - Polygenic trait.
- A graph of the frequencies of phenotypes often shows a normal distribution - Phenotypic distribution.
- Genes may be on the same chromosome or different chromosomes - Linked genes.
- All alleles are of the same gene - Single gene traits.
- Each gene may have two or more alleles - Heterozygous.
What is a Gene?
This is defined as the basic unit of heredity and is usually passed from parent to offspring.
The most appropriate association of correct number of genes affecting phenotypes can be seen above.
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