Question

heyy the answers are provided I just dont understand why

The table below shows short DNA sequences from a gene in a closely related group of living (but imaginary) beetles, as well as their common ancestor. Eodiochus. Assume that each change in the DNA sequence evolved only once. Species DNA sequence Eodiochus AA CTG CTT Yellow spotted beetle AG CT G GTT Spiny beetle A G C A G G C T Crescent beetle A G C G C T T Lark beetle LAG CA C G C T In the space below, use the information from the DNA sequences to draw a phylogenetic tree that represents the relationship among the beetle species. Indicate the locations on the tree where there is a change in the DNA sequence. Place Eodiochus in the appropriate place on your tree. Crescent Yellow Spiny Lark +4A & 70 +66 +2G Eodiochus

Answer 1

Given phylogenetic tree is correct , Eodiochus is placed at it's right position in the tree and path of origin of other species described in the tree is defined . Crescent has one mutation as compared to its ancestor (Eodiochus) and yellow has 2 mutations , spiny as 3 mutations and lark has 5 mutations therefore all of them are placed correctly .