Heterozygous vs Homozygous

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Presentation transcript:

Heterozygous vs Homozygous

Heterozygous vs Homozygous Pairs of alleles can be either heterozygous or Homozygous. An allele are a pair of genes (section of DNA).

Heterozygous Heterozygous means that there are two different alleles, one being dominate and the other is recessive. This is represented by letters For example: Rr, Gg, Tt The capital means dominate gene, while the lower case means recessive.

Homozygous Means that both alleles are exactly the same. For example: FF, GG, TT

Dominate and recessive A dominate allele will always be expressed over a recessive allele. For Example: Brown eyes are dominant to blue eyes, thus brown eyes are given the letter B, as blue eyes are given the letter b. If a person has the alleles Bb, they will have brown eyes, BB they will have brown eyes, bb they will have blue eyes.