With the help of given pedigree, find out the probability for the birth of a child having no disease and being a carrier (has the disease mutation in one allele of the gene) in F₃ generation. 

The correct answer is 1/4

Explanation:

• A pedigree chart is a diagram that shows the occurrence and appearance of phenotypes of a particular gene or organism and its ancestors, often used to determine inheritance patterns.
• Carriers are individuals who have one recessive allele (disease mutation) and one normal allele. They do not show symptoms of the disease but can pass the mutation to their offspring.

X-linked Recessive Mutation:

• Typically, X-linked recessive traits are more common in males because they only have one X chromosome.
• Affected males pass the trait to all their daughters, who are carriers, and to none of their sons.
• Carrier females (having one normal and one affected X chromosome) can pass the trait to both sons and daughters.

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Thus, the correct answer is 1/4 (XX^c)