tetrad

What Is A Tetrad Quizlet? Tetrad. Structure of two homologous chromosomes and two sets of sister chromatids. Crossing-Over. Chrmoatids of homologous chromosomes cross over one another; alleles are exchanged, producing new combinations. What does a tetrad consist of quizlet? Also called a tetrad because it consists of four chromatids. Pair of chromosomes that are the