Matching Pairs Punnett Squares, Variation, & Mutations (D)Online version Flashcards - Punnett Squares, Variation, & Mutations by Natasha Hawkins 1 Punnett Square definition 2 Mutation 3 Punnett Square showing NO VARIATION of offspring genotypes compared to parents 4 2 letters per starred spot 5 Mutations AND Mixing of alleles during Sexual Reproduction 6 1 letter per starred spot 7 The two different parents 8 The possible offspring 9 Sexual Reproduction 10 Punnett Square showing VARIATION of offspring genotypes compared to parents 11 Asexual Reproduction Type of reproduction that leads to variation of traits Causes of genetic variation Type of reproduction that leads to NO variation of traits A chart that shows all the possible combinations of alleles that can result from a genetic cross of 2 parents A change in a gene/allele base pair that causes a new allele to be formed that can be passed to the offspring