Which genetic disease lacks a clotting factor?

Rationale

Hemophilia is the genetic disease that lacks a clotting factor.

Hemophilia is a disorder where blood doesn’t clot properly due to the absence or deficiency of specific clotting factors, which are essential proteins in the blood coagulation process. This deficiency leads to excessive bleeding and bruising, distinguishing it from the other genetic diseases listed.

A (Fragile X) YOUR ANSWER

Fragile X syndrome is a genetic condition caused by a mutation in the FMR1 gene on the X chromosome, leading to intellectual disability and developmental delays. However, it does not involve any issues related to clotting factors or blood coagulation, making it unrelated to the question.

B (Albinism) YOUR ANSWER

Albinism is a genetic condition characterized by a lack of melanin, which affects skin, hair, and eye color. While it can affect vision and increase susceptibility to sunburn, it does not involve any clotting factor deficiencies and thus is not relevant to the topic of blood coagulation.

C (Hemophilia) CORRECT

Hemophilia is caused by a deficiency in specific clotting factors, leading to severe bleeding issues. This condition is directly related to the question, as it explicitly lacks the necessary components for normal blood clotting, which is the central focus.

D (PKU) YOUR ANSWER

Phenylketonuria (PKU) is a metabolic disorder caused by the inability to break down phenylalanine due to a deficiency of the enzyme phenylalanine hydroxylase. While it requires dietary management to prevent complications, it does not impact blood clotting factors and is therefore not applicable to the question posed.

Conclusion

Hemophilia stands out as the only genetic disease in the provided options that directly pertains to the absence of a clotting factor, leading to significant issues with blood coagulation. The other conditions—Fragile X, Albinism, and PKU—do not involve clotting factors or bleeding disorders, highlighting the unique nature of hemophilia in this context. Understanding these distinctions is crucial for recognizing how genetic diseases can affect physiological functions differently.

Which genetic disease lacks a clotting factor?

Hemophilia is the genetic disease that lacks a clotting factor.

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