Home » List of chromosomes » Chromosomes xx
Chromosomes xx Chromosomes xx
20
98.7
89.3
45.3
19.5
42.9
98.8
20
98.7
97.5
89.3
49.7
45.3
24.2
19.5

girls by default?

Boys are boys thanks to the precocious action of ‘male’ proteins such as SRY. In the absence of male proteins, the foetus becomes a girl. So are girls, girls by default? The concept dates from the 1950s and the question remains open…

Duchenne

DMD: This gene is associated with Duchenne muscular dystrophy, characterized by muscle paralysis.

Rett syndrome

MECP2: This gene is associated with Rett syndrome (mental retardation).

royal illness

F8/F9: These genes are involved in blood coagulation and associated with haemophilia. The illness became infamous when Tsarevitch Alexis Nikolaïevitch of Russia suffered from it; it was transmitted to him from his great grand-mother, Queen Victoria of England.

autism

NLGN3/NLGN4X: These genes are associated with autism.

only for girls

NR0B1: This gene is essential in the development of female sexual characteristics.

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