Mary later marries John who, through a previous marriage, had a child Marie, who still has the disease. Mary and John want to have a child. A test cross with an axial flowered, round seeded plant results in 54 plants that are like the unknown parent and 48 plants that have terminal flowers and round seeds. A man has six fingers on each hand and six toes on each foot. His wife also has 6 digits but their only child, a daughter, has the normal number of digits.
Extra digits is a dominant trait.
Remember that when the dominant R and P occur together, the chicken has a walnut comb. A homozygous recessive condition at both loci results in a single comb. Using a Punnett square, illustrate a cross between a heterozygous rose comb chicken and a heterozygous pea comb chicken. Draw your square on the back of this sheet. Using the letter designations of AaBb, illustrate Mendel's law of independent assortment by showing what letters are assorted independently of each other.