MEIOSIS

INDEPENDENT ASSORTMENT

The random assortment of homologous chromosomes that occurs during meiosis.



http://users.rcn.com/jkimball.ma.ultranet/BiologyPages/M/Meiosis.html

CROSSING OVER

The exchange of genetic material that occurs between homologous chromosomes during the beginning of meiosis


http://www.esu7.org/~leiweb/Staff/DSchmidt/Biology/Internet/Mitosis_and_Meiosis/Crossing_Over.htm

MUTATIONS

A change in the order of nitrogen bases in a cell’s DNA that results in different genetic sequences



http://www.genefaith.org/ethgen/pages/science/geneticdisease.htm

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FERTILIZATION

The joining of egg and sperm (both haploid) to produce a diploid zygote.


http://waynesword.palomar.edu/lmexer8.htm

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NONDISJUCNTION

An alteration in which homologous chromosomes fail to separate normally during meiosis


http://genetics.thetech.org/ask/ask296

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