BioCoach Activity

Concept 16: Gene Segregation in Meiosis - 1

One way meiosis generates genetic variability is through the different ways in which maternal and paternal chromosomes are combined in the daughter cells.

The number of possible chromosome combinations in the haploid nuclei is potentially very large. In general, the number of possible chromosome combinations is 2n, where n is the number of chromosome pairs.

For example, in fruit flies, which have 4 chromosome pairs, the number of possible combinations is 2n, or 16. For humans, with 23 chromosome pairs, there are over 8 million metaphase arrangements.