This genetics vocabulary crossword puzzle contains 39 key terms for the beginning genetics student. I frequently use crossword puzzles in my biology classes to reinforce and review key vocabulary terms, and to practice spelling. This puzzle covers the vocabulary terms commonly used in a unit on genetics.The vocabulary words used in this puzzle include:independent assortment, codominance, multiple alleles, trait, capital letter, lower case letter, XX, XY, monohybrid, dihybrid, first generation,