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Duchenne muscular dystrophy is a genetic disorder that arises from a recessive X-linked allele. Why is this disorder almost always restricted to males?

A. Males have XX chromosomes and therefore have a higher chance of carrying both recessive alleles for this genetic disorder.
B. Females have XX chromosomes and therefore have a very low chance of carrying both recessive alleles for this genetic disorder.
C. Females have XX chromosomes and therefore have a higher chance of carrying both recessive alleles for this genetic disorder.

Respuesta :

taskmasters
Duchenne muscular dystrophy is a genetic disorder that arises from a recessive X-linked allele and is almost restricted to males because females have XX chromosomes and therefore have a very low chance of carrying both recessive alleles for this genetic disorder. The correct answer would be option B. 
oopsydaisy
The disorder Duchenne muscular dystrophy is almost always restricted to males because females have XX chromosomes and therefore have a higher chance of carrying both recessive alleles for this genetic disorder.

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