Explain the causes, inheritance pattern and symptoms of any two Mendelian genetic disorders .

Explanation

### Step-by-Step Text Solution

**1. Explanation of Hemophilia**

- **Causes**: Hemophilia is a genetic disorder caused by a mutation in the gene responsible for producing clotting factors, which are proteins necessary for blood coagulation. The gene for hemophilia is located on the X chromosome.

- **Inheritance Pattern**: Hemophilia is inherited in a sex-linked recessive manner. This means that males (XY) are more likely to be affected because they have only one X chromosome. If that X chromosome carries the mutated gene, they will express the disorder. Females (XX) must inherit two copies of the mutated gene (one from each parent) to express the disorder, making it less common in females.

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