C Biology q dade college b Bb Tho xonomy & Sys Ch C ezto.mheducation.com/hm.tpx
ID: 170324 • Letter: C
Question
C Biology q dade college b Bb Tho xonomy & Sys Ch C ezto.mheducation.com/hm.tpx Based on what you know about cladistics, indicate which of the following statements are correct about the DNA sequences shown in the phylogenetic tree. The sequences of living species are labeled A, B. and D. Changes in nucleotide sequence are indicated for each branch in the tree. For example, T2 A means that the second base. a T was changed to an A. GTACA GACAG GTCAA GACCG GTACA The first base (G) n sequences B, C, and Dis a shared primitive character The second base (A) in sequences B and D is a shared derived character The third base (C) in sequences B, C, and D, is a shared derived characte The fourth base (A) for sequences B and Cis a shared primitive character. The fifth base (G) for sequences B and D is a shared derived character. References eBook & Resources Check All That Apply Section: 26.02 Phylogenetic Trees a A 21:52 3/21/2017Explanation / Answer
The answer is the third base (C) in sequences B, C and D is a shared character.
The divergence of sequences from A to B, C and D happened due to modification of A at the third base into C, which is shared between the B, C and D
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