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o AT&T; 11:07 AM ggc.view.usg.edu BIOL3300K Ch 13 Questions 1. Multiple alignmen

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Question

o AT&T; 11:07 AM ggc.view.usg.edu BIOL3300K Ch 13 Questions 1. Multiple alignment of DNA sequences from the same gene of five different organisms. Produce a distance matrix table based on the sequence differences Organism 1: ACGGGATTCAGCG AATT T A Organism 2 CCG GGATGCAGCG CCTTTG Organism 3 A C CCGA T TCA G C G A A TT T A Organism 4:ACGGGAATCAGCG A ATT T A Organism 5 ACGGGATTCAG C CCCT TA The following phylogenetic tree will be used for questions 2 and 3 2. Comparing the 4 phylogenetic trees above, three of the four trees show the exact same relationship between species A, B, and C Which tree shows a different relationship? 3. Based on the 4 phylogenetic trees above, homologous DNA sequences from species A and B are expected to be more similar to one another than those of species B and C. a. True b. False The following phylogenetic tree will be

Explanation / Answer

Answer 2. tree number 2 shows a different relationship

Answer 3. FALSE. as species B and C are more closely related therefore homologous squences from these will be more similar than A and B

Answer 4. common ancestor of B and C lived more recently.

Answer 5.     a. from root to branch tip.

Answer 6.     c. Both of the above

Answer 7.     a. they are a way to visualize how different species are related.