Species 1 1A 1B Species 3 3A 3B 1A Gene trees V-VLY Species tree Orthologs Species 2 2A 2B 1. In the picture above Genes 3A and 3B are Paralogs Transposon Neutral genes - Duplication 2A 3A 3B 2B 1B-Duplication
Added by Kenneth B.
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It seems like we have a species tree with three species (1, 2, and 3) and their corresponding sub-species (1A, 1B, 2A, 2B, 3A, 3B). There are also gene trees for species 1 and 3, and it is mentioned that genes 3A and 3B are paralogs. Additionally, there is a Show more…
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TRAIT OUTGROUP SPECIES 1 SPECIES 2 SPECIES 3 hair color Black hair Red hair Black hair Red hair eye color Green eyes Blue eyes Blue eyes Green eyes feet shape no webbing no webbing webbed feet webbed feet Size Short Tall Short Tall Based on the character table above, which of the three phylogenetic trees is most likely to be correct based on the concept of parsimony? TREE 1 outgroup species 1 species 2 species 3 TREE 2 outgroup species 1 species 3 species 2 TREE 3 outgroup species 2 species 3 species 1 TREE 3 ALL ARE EQUALLY LIKELY TO BE CORRECT TREE 1 TREE 2
Sri K.
Use this phylogenetic tree to answer the questions below: 1. Interpret the phylogenetic tree shown below to answer the following questions: [½ pt each = 3 pts total] a. Highlight the node (branch point) that represents the most recent common ancestor of A and B. b. Which species is the outgroup? Highlight the one: A B C D E F G c. Which species have trait 1? Highlight all who do: A B C D E F G d. Which species have trait 2? Highlight all who do: A B C D E F G e. Which species is/are most closely related to E? f. Which species is/are most closely related to F?
A) Species 1 and 2 share a common ancestor A. Species 3 and 4 share a common ancestor B. Ancestors A and B share a common ancestor C. A taxonomic group includes ancestors B and C and species 3 and 4. This group is: a. a stem group, b. polyphyletic, c. paraphyletic, d. monophyletic, e. all of the above. B) Referring to question A, a taxonomic group includes ancestors A, B, and C and species 1, 2, and 3. This group is: a. a stem group, b. polyphyletic, c. paraphyletic, d. monophyletic, e. all of the above. C) Referring to question A, a taxonomic group includes ancestors A and B and species 1, 2, 3, and 4. This group is: a. a stem group, b. polyphyletic, c. paraphyletic, d. monophyletic, e. all of the above.
Suman K.
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