Draw a phylogenetic tree based on characters 1-5 in the table below. Place hatch marks on the tree to indicate the origin of characters 1-6. 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. How many evolutionary changes are required in each tree? Which tree is most parsimonious? Character Lancelet (outgroup) Lamprey Tuna Salamander Turtle Leopard Dolphin 1. Backbone 0 1 1 1 1 1 1 2. Hinged Jaw 0 0 1 1 1 1 1 3. Four Limbs 0 0 0 1 1 1 1* 4. Amnion 0 0 0 0 1 1 1 5. Milk 0 0 0 0 0 1 1 6. Dorsal fin 0 0 0 0 0 0 1 *Dolphins have 4 limbs (2 fins and 2 hind limb buds as embryos)

Draw a phylogenetic tree based on characters 1-5 in the table below. Place hatch marks on the tree to indicate the origin of characters 1-6. 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. How many evolutionary changes are required in each tree? Which tree is most parsimonious? Character Lancelet (outgroup) Lamprey Tuna Salamander Turtle Leopard Dolphin 1. Backbone 0 1 1 1 1 1 1 2. Hinged Jaw 0 0 1 1 1 1 1 3. Four Limbs 0 0 0 1 1 1 1* 4. Amnion 0 0 0 0 1 1 1 5. Milk 0 0 0 0 0 1 1 6. Dorsal fin 0 0 0 0 0 0 1 *Dolphins have 4 limbs (2 fins and 2 hind limb buds as embryos)

Biology: The Dynamic Science (MindTap Course List)

4th Edition

ISBN:9781305389892

Author:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Publisher:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Chapter24: Systematics And Phylogenetics: Revealing The Tree Of Life

Section: Chapter Questions

Problem 1ITD: The phylogenetic tree for 12 cat species (Felidae) reproduced at right was assembled from molecular...

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Dolphins and fish have similar body shapes. Is this feature more likely a homologous or analogous trait? Why is it so important for scientists to distinguish between homologous and analogous characteristics before building phylogenetic trees?
a) Draw a phylogenetic tree based on characters 1-5 in the table below. Place 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) How many evolutionary changes are required in each tree? Which tree is most parsimonious? Use figure 20.5 and 20.12 from the Campbell, Biology in focus. Can you pls explain this to me?
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Now, assume that tuna and dolphins are sister species. Redraw the phylogenetic tree accordingly. Use hatch marks to indicate the origins of characters 1-6?
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Character	Lancelet (outgroup)	Lamprey	Tuna	Salamander	Turtle	Leopard	Dolphin
1. Backbone	0	1	1	1	1	1	1
2. Hinged Jaw	0	0	1	1	1	1	1
3. Four Limbs	0	0	0	1	1	1	1*
4. Amnion	0	0	0	0	1	1	1
5. Milk	0	0	0	0	0	1	1
6. Dorsal fin	0	0	0	0	0	0	1
*Dolphins have 4 limbs (2 fins and 2 hind limb buds as embryos)