1. A Genetic Trait

2. What are the odds that males will be born compared to females? You may be surprised, but there is a 50% chance that when a baby is born, it will be female. That leaves us with the fact that there is also a 50% chance that a male will be born. Think of it this way…

3. Male Female XY XXXXY XXXXY

4. Color blindness is a gene that is passed from a parent and is located on the “X” in a humans DNA. Males (XY) pass an “X” chromosome to each daughter and a “Y” chromosome to each son. Females (XX) pass one of their “X” chromosomes to each child.

5. People who have red-green color blindness can’t tell the difference between red or green. It is caused by the inheritance of an affected “X” chromosome passed to a baby from parents. The genes affect parts of the eye that are able to tell the difference between the two colors. What would be a serious problem for people with this disorder? *Hint: driving