A non-haemophilic couple was infomed by their doctor that there is possibility of a haemophilic child being born to them .Draw a checker board and find out the percentage of possibility of such a child among the progeny.

Explanation

To solve the problem of determining the percentage possibility of a hemophilic child being born to a non-hemophilic couple, we will follow these steps:

### Step 1: Understand the Genetics of Hemophilia
Hemophilia is an X-linked recessive disorder. This means that the gene responsible for hemophilia is located on the X chromosome, and a male only needs one copy of the hemophilia gene (X^h) to express the disorder, while a female needs two copies (X^hX^h).

### Step 2: Determine the Genotypes of the Parents
- The female parent (non-hemophilic) can either be homozygous normal (X^X^), or a carrier (X^hX). Since there is a possibility of having a hemophilic child, the female must be a carrier (X^hX).
- The male parent (non-hemophilic) has the genotype XY, meaning he does not carry the hemophilia gene.
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