Answer:
He needs to inherit a copy of the color blindness allele from either his mother or his father.
The null hypothesis states that there is no relationship between the two variables being studied (one variable does not affect the other). It states results are due to chance and are not significant in terms of supporting the idea being investigated
Good environmental decisions need to have scientific facts thus in order to make informed decisions,policy makers are advised by letter C. Environmental scientists. In addition, not only scientific means is needed to have a good environment but also should include the economic,social and ethical aspects.