Problem:
A student has two dominant traits dependent on single genes, cataract (an eye abnormality), which he inherited from his mother, and polydactyly (extra fingers and/or toes), which he inherited from his father.
If the loci for these two traits are very closely linked, would the student's child be more likely to have:
a.) either cataract or polydactyly?
b.) Both cataract and polydactyly
c.) Neither trait?
Explain your answers