3. Assume that in humans, right-handedness (R) is dominant overleft-handedness (r). A left handed man marries a right-handedwoman. They have ten children all right-handed. What are thegenotypes of all individuals of this family? Dad = Mom = Kids=,

4. A right-handed man marries a left-handed woman. Theirfirst child is left-handed. What are the chances that futurechildren will be right-handed? _________%Left-handed?________%

5. Assume in humans that brown eyes (B) are dominant toblue (b) and right-handedness (R) is dominant over left-handedness(r). A brown-eyed, right-handed man marries a blue-eyed righthanded woman and their first child is blue-eyed and left-handed.What are the genotypes of the two parents?

Mom _________

Dad __________

6. In humans, a type of blindness called aniridia (B) isdominant over the normal sighted individual (b). Migraine headache(M) is the result of a different dominant gene. A non-migrainingman with aniridia whose mother was not blind marries a normalsighted woman who suffers from migraines but whose father did not.In what proportion of their children would you expect to have bothaniridia and migraine to occur? __________

   7. A researcher believes, as a resultof investigation, that the dark pigmented skin of the pure Africanis due to two pairs of factors, and that white skin is due to theabsence of these factors. Let these factors be represented by AABBand the white skin by aabb. Since no skin is pure white (even inwinter!). Assume that A = 30% of black, B = 20%, a = 2%, and b =1%.

Now cross two individuals both with the genotype AaBb.List the percent of color and the number of individuals in each asthe result of such a cross.