6. The following diagrams show a model for a drawing application. Refactor the class diagram and sequence diagram using the Visitor design pattern. Justify the pros and cons of the refactored model. (1.5 points)
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The Visitor design pattern allows adding new operations to an object structure without modifying the objects themselves. It separates the algorithm from the objects on which it operates. Now, let's refactor the class diagram and sequence diagram using the Visitor Show more…
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(a) Draw a phylogenetic tree based on the characters in the table below. Draw hatch marks on the tree to indicate the origin of characters $1-6 .$ (b) Assume that tuna and dolphins are sister species and redraw the phylogenetic tree accordingly. Use hatch marks to indicate the origin of characters $1-6 .$ (c) Determine how many evolutionary changes are required in each tree. Identify the most parsimonious tree.
(a) Draw a phylogenetic tree based on characters $1-5$ in the table below. Place hatch marks on the tree to indicate the origin(s) of characters $1-6 .$ (b) Assume that tuna and dolphins are sister species and redraw the phylogenetic tree accordingly. Use hatch marks to indicate the origin(s) of characters $1-6 .$ (c) How many evolutionary changes are required in each tree? Which tree is most parsimonious?
Sketch a phylogenetic tree for the family of homologous proteins whose partial sequences are given below. $$\begin{array}{lllllllllllll} \text { Protein A } & \mathrm{T} & \mathrm{L} & \mathrm{A} & \mathrm{D} & \mathrm{K} & \mathrm{A} & \mathrm{I} & \mathrm{S} & \mathrm{L} & \mathrm{H} & \mathrm{D} & \mathrm{S} \\ \text { Protein B } & \mathrm{T} & \mathrm{L} & \mathrm{G} & \mathrm{D} & \mathrm{K} & \mathrm{A} & \mathrm{V} & \mathrm{S} & \mathrm{I} & \mathrm{H} & \mathrm{E} & \mathrm{S} \\ \text { Protein C } & \mathrm{T} & \mathrm{L} & \mathrm{A} & \mathrm{D} & \mathrm{K} & \mathrm{A} & \mathrm{I} & \mathrm{S} & \mathrm{V} & \mathrm{H} & \mathrm{D} & \mathrm{S} \end{array}$$
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