Question

If someone who is homozygous for an autosomal recessive disorder mates with a person who does

NOT carry the mutated gene their child will
have a 100 percent chance of developing the disease
have a 25 percent chance of developing the disease
have a zero percent chance of developing the disease
have a 50 percent chance of developing the disease

Answer 1

have a zero percent chance of developing the disease

Explanation: example aa for disorder mates with AA (doesn't have the mutation), all offspring will be Aa. Offspring will be a carrier of the autosomal recessive disorder but will not develop the disease