'Xist gene' diaporamas de présentation

The Sex Chromosomes and Their Abnormalities

The Sex Chromosomes and Their Abnormalities. The Chromosomal Basis of Sex Determination. The fundamental basis of the XX/XY system of sex determination: Males with Klinefelter syndrome: karyotype 47,XXY, whereas most Turner syndrome females have only 45 chromosomes with a single X chromosome.

1.21k views • 69 slides

The Xist RNA Gene Evolved in Eutherians by Pseudogenization of a Protein-Coding Gene

The Xist RNA Gene Evolved in Eutherians by Pseudogenization of a Protein-Coding Gene. Duret et al. (2006). Background. Gene dosage is compensated by X-chromosome inactivation (XCI) In eutherians, XCI involves the Xist gene and the X inactivation center ( Xic )

257 views • 12 slides

The Xist RNA Gene Evolved in Eutherians by Pseudogenization of a Protein-Coding Gene

The Xist RNA Gene Evolved in Eutherians by Pseudogenization of a Protein-Coding Gene. Duret et al. (2006). Background. Gene dosage is compensated by X-chromosome inactivation (XCI) In eutherians, XCI involves the Xist gene and the X inactivation center ( Xic )

219 views • 12 slides

194 views • 10 slides