A color-blind child is born to a normal couple. Work out a cross to show how it is possible. Mention the sex of this child.

Explanation

To solve the problem of how a color-blind child can be born to a normal couple, we need to understand the genetics behind color blindness, which is a sex-linked trait.

### Step-by-Step Solution:

1. **Understand the Genetics of Color Blindness**:
- Color blindness is a recessive trait that is carried on the X chromosome.
- Females have two X chromosomes (XX), while males have one X and one Y chromosome (XY).
- The gene for color blindness is denoted as "X^c" (color blind) and "X" (normal vision).
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