This activity is designed to introduce learners to genes, genotypes and simple inheritance patterns. In this activity, learners make guesses about their own genotype, create gametes from their genotypes, then make “babies” with a partner. Along the way, learners discover answers to the questions such as: What are genes? How are genes (and traits) passed on? How are gametes different than other cells in our body? Why don’t siblings look alike? This activity is designed to be used in conjunction with the "Human Traits" activity from the same resource but can be used alone.