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