Two recessive alleles for the phenotype

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A recessive trait is one where the individual must have two recessive alleles for the phenotype of the trait to be visible. The recessive trait can be carried from generation to generation through heterozygous individuals. A person who is heterozygous for a harmful or deleterious trait is said to be a "carrier" of the trait.

If an individual receives 2 recessive alleles for a harmful or deleterious trait, let us say for our problem below, they will have the "illness".

Solve the problem of the parents provided below. Perform the Punnett Square and answer the questions below. 

Mom and Dad are both heterozygous for the harmful or deleterious recessive trait. 

  • What is the probability of their offspring having the illness? ____________%
  • What is the probability of their offspring being a "carrier"? _____________%

Reference no: EM131871017

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