Use the problem description to write down the genotypes of the parents. If a parent's genotype is unknown, look at their offspring to work backward.
A dominant allele masks the effect of a recessive one. Recessive traits only appear if an individual is homozygous recessive. 2. Step-by-Step Problem-Solving Framework solving problems in genetics pdf
Identify the traits and assign letters. Use a capital letter for the dominant trait and a lowercase for the recessive one (e.g., P for purple, p for white). Use the problem description to write down the
Place one parent's gametes along the top and the other's down the side. Fill in the boxes to see potential offspring combinations. P for purple