Consider the following DNA sequences for four different species: 1: AATCG 2: TAATG 3: ATACC 4: ATAGG Based on the principle of parsimony, which species shares a most recent common ancestor with a species having the sequence TTACC?

Guinea pig coat color is determined by a single gene. the allele for black coat color is dominant to brown. in a cross between twoblack-haired guinea pigs, 20 offspring are born. if both parents were heterozygous, probability would predict that approximately howmany of the 20 offspring would have brown hair?