Colorblindness is the inability to separate the color variation in between different colors. It is a disease that is not as common in females as in males. It is a sex linked genetic disease.
The allele for the colorblindness is recessive gene and located on the X chromosome. It is not express itself in the presence of the dominant allele where as in males there is only one X chromosome with Y chromosome and if it is express itself for sure.
This is a case of mitochondrial heredity so correct answer is e. Mitochondrial
In this case, the mother transfers her mitochondria to her children. So the child is affected. The male does not pass this trait on to his children.
We can see from the lineage that the mother has defective mitochondria so all their children will have defective mitochondria. One of his sons has mitochondrial, but is unable to pass it on to the next generation.
