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Created page with "In the past Y chromosome was thought to be an empty gene which is now proven not true. It contains fewer genes compared to X chromosomes. Y chromosome are split into two par..." |
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In the past Y chromosome was thought to be an empty gene which is now proven not true. It contains fewer genes compared to X chromosomes. Y chromosome are split into | In the past [[Y chromosome|Y chromosome]] was thought to be an empty gene which is now proven not true. It contains fewer genes compared to [[X chromosomes|X chromosomes]]. Y chromosome are split into three parts [[pseudoautosomal|pseudoautosomal]] (PAR) regions sharing the same [[Ancestry|ancestry]] regions on the X chromosome when is recombined in the process of meiosis and the male-specific regions of the Y (MSY) which also has some genes not all share the same [[Ancestry|ancestry]] with the X chromosome. Then the male specific region of the Y are then further divided into three parts which one contains functional genes (euchromatic region), the other contains lacking genes ([[Heterochromatic|heterochromatic]] region) and sex-determining region Y (SRY) are the testis-determining factor<ref>William S.Klug Michael R. Cummings Charlotte Spencer Michael Palladino (2010). concepts of genetics. 10th ed. United Kingdom: Pearson. p224-225.</ref>. <br> | ||
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Latest revision as of 13:38, 23 October 2015
In the past Y chromosome was thought to be an empty gene which is now proven not true. It contains fewer genes compared to X chromosomes. Y chromosome are split into three parts pseudoautosomal (PAR) regions sharing the same ancestry regions on the X chromosome when is recombined in the process of meiosis and the male-specific regions of the Y (MSY) which also has some genes not all share the same ancestry with the X chromosome. Then the male specific region of the Y are then further divided into three parts which one contains functional genes (euchromatic region), the other contains lacking genes (heterochromatic region) and sex-determining region Y (SRY) are the testis-determining factor[1].
References
- ↑ William S.Klug Michael R. Cummings Charlotte Spencer Michael Palladino (2010). concepts of genetics. 10th ed. United Kingdom: Pearson. p224-225.