Concept explainers
To review:
An imaginary phylogenetic tree has to be created for an ancestral species along with ten descendants. A monophyletic group, a polyphyletic group, and a paraphyletic group have to be marked on the tree. The identified groups, which are marked on the tree must match the definitions of mentioned three groups.
Introduction:
The pictorial representation of an evolutionary relationship that exists among the living organisms is shown by a phylogenetic tree. The phylogenetic tree is based upon the similarities and differences in the genetic and morphological traits. The diversity of an organism can be easily studied using the phylogenetic tree as it indicates the relationship between the organisms.
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Biology: The Dynamic Science (MindTap Course List)
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- Identify the outgroup from the phylogenetic trees and box/mark the whole lineage in red. Identify the most recent common ancestor for species A and B and mark it in blue. Identify the most recent common ancestor for species C and D and mark it in green. ABCDE DE 면 V BIU GGG !!! 르르르 M comprearrow_forwardUsing the picture below, make a phylogenetic tree. Make sure that all seven (7) creatures, including the outgroup, are on the tree and assigned their own branch. Make sure all parts of the tree are properly labeled. Circle the different clades/monophyletic groups (many will be overlapping and that's okay). ALSO, In the lineage leading to each new node, be sure to indicate the shared derived character and how it has changed (e.g., if the synapomorphy was having eyes, we would indicate this on the tree by drawing something like this no eyes > eyes). Don't forget to add the root! Finally, circle all your clades/ monophyletic groups and give them informative names like a good little systematist! Please follow all these steps to create the phylogenetic tree. Do it correctly and completely. Do not use previous versions/answers.arrow_forwardWhen constructing phylogenetic trees, what is the purpose of applying maximum parsimony? Parsimony allows the researcher to "root" the tree. For trees based on morphology, the most parsimonious tree requires the maximum evolutionary events. The outgroup roots the tree, allowing the principle of parsimony to be applied. For trees based on morphology, the most parsimonious is the one that uses the simplest explanation of evolutionary events.arrow_forward
- V4arrow_forwardBelow are phylogenetic trees depicting the relationships among four species, A, B, C, and D. Which of the following statements is correct? ABCD ADCB DCBA D CAB (1) (2) (3) (4) Tree (1) and Tree (2) are the same tree. Tree (2) and Tree (4) are the same tree. Tree (2) and Tree (3) are the same tree. All four trees are in fact the same tree. All four trees are in fact different trees.arrow_forwardNext fill out the following table noting how many derived traits are shared for each pair of ingroup species. Species A Species B Species C Species D Species E Species F Species A Species B X X Species C X X X Species D X Species E X X Species F X X X X Use the above matrix to draw a cladogram depicting the phylogenetic relationships among all seven species. Start by grouping the pairs that have the most shared derived traits and then linking groups together. This is difficult to describe so look at the example matrix and cladogram below and then just give it a try, and ask for help if you get stuck. We will go through this as a group before lab is over to make sure everyone understands. Look at the hypothetical example first. Phylogenetic Systematics Page 5 Example Matrix Of Shared Derived Traits: Species Species Species Species A В C D Species A Species B Species C Species D 1 1 3 X Building a cladogram from above matrix: Step 1. Species C and D share the most derived traits so link…arrow_forward
- Please help Sketch the phylogenetic treearrow_forwardFind a current, credible phylogenetic tree representing any group of organisms (your choice)! Draw that tree and on it indicate nodes, synapomorphes, monophyletic, polyphyletic, and paraphyletic groups (make sure the image you choose is complex enough to show all these groups). Below your drawing, in paragraph form, describe the relationships of four of the members on your tree based on how a phylogenetic tree is interpretedarrow_forwardUse the following matrix to create a phylogenetic tree showing the relationship of the species. Mark the position of species and traits on your tree. (Hint: the Jellyfish is the outgroup). 1: is to represent the presence of the traits 0: is to represent the absence of the traitsarrow_forward
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