Pleiotropy is a tough word, not going to lie. It really just means that one gene can control several different traits. Marfan syndrome is an example of a genetic disorder where the presence of one gene causes many different traits to appear. Some evidence suggests that President Abraham Lincoln could have had Marfan's, but the absolute best example (in my opinion) is Peter Mayhew (the original actor that played Chewbacca!) who was over 7 feet tall! What are some (list at least 3) of the phenotypic traits for an individual who has the Marfan genotype?

a single genetic disorder that can produce several symptoms ... Marfan syndrome. Genetic heterogeneity is. when the same phenotype may result from the actions of different genes ... An example of a condition that exhibits genetic heterogeneity is ... Polygenic means. the traits are determined by more than one gene.

Explanation:

i'm gonna put a couple so you can chose from

explanation:

if you know the fur color of the offspring mice, you can use the ratios to identify the genotypes of the parents.

if either parent mouse passes a dominant allele, the offspring will have black fur.

if the parental mice has two different fur color (i.e white and black) , the color of the offspring's fur would be either black, white, or the combination of both (grey)

hope this : )

the correct answer, according to e2020, is the second choice there is an occluded front in region a and a cold front in region b.