Inheritance Pattern of an X-linked Genetic Disorder

Hard Biology Genetics

A researcher is studying a rare genetic disorder that affects the production of a specific protein involved in cellular respiration. This disorder is caused by a mutation in a gene located on the X chromosome. The researcher discovers that both males and females can exhibit symptoms of the disorder, but the severity of symptoms varies significantly between the genders. Given this context, which of the following statements best explains the observed pattern of inheritance?

The disorder is an autosomal dominant trait, showing varying expressivity.

The disorder is X-linked recessive, and females are affected due to random X-inactivation.

The disorder is X-linked dominant, leading to lethality in males.

The disorder is caused by mitochondrial inheritance, affecting mitochondrial function in both genders.

Hint

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