In alkaptonuria this is secreated in urine

Options

A. Urea
B. Alanine
C. Homogenticsic acid
D. Chlorogenic acid

Answer

**Step-by-Step Solution:**

1. **Understanding Alkaptonuria**: Alkaptonuria is a rare genetic disorder that is inherited in an autosomal recessive manner. This means that an individual must inherit two copies of the mutated gene (one from each parent) to express the disorder.

2. **Cause of Alkaptonuria**: The disorder is caused by a mutation in a gene that leads to the accumulation of a specific substance in the body. In the case of Alkaptonuria, the substance that accumulates is homogentisic acid (HGA).

3. **Effects of Accumulation**: The excess accumulation of homogentisic acid in the body has specific effects, one of which is that it is excreted in the urine. This results in the urine turning dark or black upon standing due to the oxidation of homogentisic acid.

4. **Identifying the Correct Answer**: The question asks what is secreted in the urine in the case of Alkaptonuria. Based on the information gathered, the correct answer is homogentisic acid (option C), as it is the substance that accumulates and is responsible for the dark coloration of the urine.

5. **Conclusion**: Therefore, in Alkaptonuria, the substance that is secreted in the urine is homogentisic acid.

**Final Answer**: Homogentisic acid (option C).

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