Homologous chromosomes have alleles of the same ____   located at the same _____.

Humans have 23 pairs of chromosomes. Of the 23 pairs, ____ pairs are autosomes and ____ pair(s) are sex chromosomes. 

Meiosis is a process in which gametes are produced through two rounds of cell division which results in the production of _____ daughter cells that are _____.

On which of the following phases does nondisjunction occur?

Independent assortment happens when homologous chromosomes are independently and randomly aligned during Metaphase I. This process results in a number of possible genetic combinations. What formula can we use to determine the total number of combinations?