Students transfer data to five different autosomal chromosome pairs and one pair of sex chromosomes.
Chromosome models are cut out and taped in half. Partners are assigned and pairs drop their chromosomes simultaneously to the ground to represent fertilization. Chromosomes are picked up in pairs, one from each partner, and the genotypes and phenotypes of offspring are determined and recorded on a data table. Birth announcements are created to describe baby's characteristics. By understanding the passing on of traits from one generation to the next, students are then prepared to discuss the importance of genetic counseling and genetic screening as well as the bioethical implications of predicting fetal genotypes.