18. 1.5 pts: Barney Rubble is heterozygous for cleft chin and dimples, both caused by dominant alleles. IF these genes are carried on the same chromosome and he inherited the two dominant alleles from one parent, what are the possible sperm that Barney can produce in regard to these two traits (let C=cleftchin,c=no cleft: D= dimples, d= no dimples). Assume crossing over does NOT occur. Answer the question with all factors the same except now the two genes are carried on different chromosomes..