Chromosome #1 contains the genetic information in a gene we will call "R". This information determines the general shape of the face. Place your baby's genotype for face shape in the data table.

Chromosome #2 contains the chin shape gene "L." The genotype "ll" prevents the expression of the next two pairs of genes. Place your baby's genotype for chin shape in the data table. The control of one set of genes by another is called epistasis. If you landed the genotype "ll" then skip the next two and start on Skin Color. Back to Front Page Back to Teacher's Information Page Back to Student's Instructions and Materials Back to Genotype -> Phenotype Classroom Booklet