Variations Produced by Meiosis
By: Shelby Graff
Independent Assortment
The random assortment of homologous chromosomes that occurs during meiosis.
Picture: http://geneticssuite.net/node/21
Crossing Over
The exchange of genetic material that occurs between homologous chromosomes during the beginning of meiosis.
Picture: http://uoitbio2013.wordpress.com/mitosis-vs-meiosis/meiosis/
Fertilization
The joining of egg and sperm (both haploid) to produce a diploid zygote.
Mutations
A change in the order of nitrogen bases in a cell’s DNA that results in different genetic sequences.
Nondisjunction
An alteration in which homologous chromosomes fail to separate normally during meiosis
Picture: http://www.biology.iupui.edu/biocourses/N100/2k2humancsomaldisorders.html