These units are the site of dosage compensation. If an extra one of them is present, the extra undergoes lyonization to form an inactive Barr body. The lack or alteration of one causes Turner's Syndrome, while an extraneous one causes Klinefelter's Syndrome. Autism frequently results from a "fragile" one. They are home to the allele for color-blindness. For 10 points, name this larger of the two sex chromosomes that, in males, joins the Y.
These units are the site of dosage compensation. If an extra one of them is present, the extra undergoes lyonization to form an inactive Barr body. The lack or alteration of one causes Turner's Syndrome, while an extraneous one causes Klinefelter's Syndrome. Autism frequently results from a "fragile" one. They are home to the allele for color-blindness. For 10 points, name this larger of the two sex chromosomes that, in males, joins the Y.
These units are the site of dosage compensation. If an extra one of them is present, the extra undergoes lyonization to form an inactive Barr body.
{X chromosome}