Autosomal Recessive Disease: Uses these genotypic symbols for an autosomal recessive disease:

Autosomal Recessive Disease: Uses these genotypic symbols for an autosomal recessive disease:

Normal = RR or Rr

Affected = rr

If a homozygous recessive (rr) male marries a heterozygous (Rr) female; what are the chances of a child being born with the trait?

If a homozygous recessive (rr) male marries a homozygous recessive female (rr); what are the chances of a child being born with the trait?