Sex Chromosomes.

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Presentation transcript:

Sex Chromosomes

Sex Chromosomes Determines the sex of the individual Female has two identical X chromosomes (XX) Male has dissimilar chromosomes One X and one Y (XY)

Autosomes Chromosomes that are not sex chromosomes Have no effect on determining the sex of the individual How many pairs of autosomes do humans have?

Sex Determination Which parent is responsible for determining the sex of the offspring? The father because he has both the X and the Y chromosomes

Genes on Sex Chromosomes Genes located on sex chromosomes are sex-linked What are some traits that are sex-linked?

Sex-Linked Traits Colorblindness Hemophilia Muscular Dystrophy