Based on your own investigation what challenges do you think scientists face when classifying new organisms?

An example of what is geese flying south for the

Color blindness is a recessive trait. the gene for color blindness is on the x chromosome. the family tree below shows the trait of color blindness. the only unknown is the mother in the first generation

All individuals have two alleles for a given trait. according to mendel's these alleles are passed down one each from both mother and father.