Relier Pairs Matching - Punnett Squares ,Variation, & MutationsVersion en ligne Matching - Punnett Squares ,Variation, & Mutations par Jodi Sarber 1 Mutations AND Mixing of alleles during Sexual Reproduction 2 Heterozygous 3 Punnett Square definition 4 Mutation 5 1 letter per starred spot 6 The possible offspring 7 The two different parents 8 Variation 9 Asexual Reproduction 10 Punnett Square showing NO VARIATION of offspring genotypes compared to parents 11 Natural Selection 12 Homozygous 13 Punnett Square showing VARIATION of offspring genotypes compared to parents 14 Sexual Reproduction 15 2 letters per starred spot Causes of genetic variation A change in a gene/allele base pair that causes a new allele to be formed that can be passed to the offspring Example: GG or gg Organisms with better genes survive and those alleles get passed onto offspring 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 Example: Gg Differences among individuals in the composition of their genes or other DNA segments Type of reproduction that leads to variation of traits