In humans, the allele for free earlobes (E) is dominant over the allele for attached earlobes (e). The allele for dark hair (D) is dominant over the allele for light hair (d). Given that both parents are heterozygous for earlobe shape and hair color, complete the following:

(3 pts) Determine the genotype for each parent male X female

(5 pts) Determine the possible gametes each parent can produce and set up a PUNNETT SQUARE. Fill in the PUNNETT SQUARE to determine all the gene combinations that can result when these gametes unite.

(4 pts, 0.5 pt each) COMPLETE THE EMPLY BLANKS:

genotype phenotype probability

EEDD or EEDd or EeDD or EeDd out of 16

EEdd or Eedd out of 16

eeDD or eeDd out of 16

eedd out of 16