Home » List of chromosomes » Chromosomes xx
Chromosomes xx Chromosomes xx
98.8
20
89.3
24.2
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…

color blindness

OPN1MW: This gene is involved in red/green colour blindness, and is generally found in boys because there is no backup copy of this gene on the Y chromosome.

Duchenne

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

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.

defence

CYBB: This gene is involved in antibacterial activity thanks to the production of free radicals.

only for girls

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

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