Answer to Question #143843 in Genetics for victory

Question

Marfan syndrome disease and brown color of eyes are autosome dominant characters. Determine the genotypes and phenotypes of children, if a diheterozygous brown-eyed man with Marfan syndrome got married to a blue-eyed healthy woman.

Answer 1

A-Marfan syndrome;

a-healthy organism;

B-brown color of eyes;

b-blue color of eyes;

AaBb-brown-eyed man with Marfan syndrome;

aabb-blue-eyed healthy woman.

P: ♀aabb x ♂ AaBb

F1 AaBb-1/4= 25%-brown-eyed with Marfan syndrome;

Aabb-1/4= 25%-blue-eyed with Marfan syndrome;

aaBb-1/4= 25%-healthy organism with brown color of eyes;

aabb-1/4= 25%-healthy organism with blue color of eyes.