Turner syndrome is associated with its absence, while those with Klinefelter's have an extra one.
De la Chappelle's syndrome indicates the biological, but not immediately apparent, appearance of too many of these entities, which Muller studied in fruit flies in considering dosage compensation. Lyonization is the process by which they become (*) inactive, which is how calico calico cats get their color.This inactivation leads to the formation of Barr bodies from one of these, and it has the lowest density of genes of any chromosome. Turner syndrome is associated with its absence, while those with Klinefelter's have an extra one. For 10 points, name this sex chromosome that most women have two of.
De la Chappelle's syndrome indicates the biological, but not immediately apparent, appearance of too many of these entities, which Muller studied in fruit flies in considering dosage compensation.
{X }chromosomes