Textbook Question
If one is constructing a phylogeny of reptiles using DNA sequence data, which taxon (birds, mammals, amphibians, or fish) might be suitable to use as an outgroup?
1377
views
22. Evolutionary Genetics
Phylogenetic Trees
Multiple Choice
Which principle is NOT used to construct a phylogenetic tree?
A
Principle of parsimony
B
Cladistics approach
C
Principle of speciation
D
Homology
Verified step by step guidance1
Understand the purpose of a phylogenetic tree: It is a diagram that represents evolutionary relationships among organisms. The tree is constructed based on shared characteristics and genetic information.
Learn about the principle of parsimony: This principle suggests that the simplest explanation or path with the least number of changes is preferred when constructing a phylogenetic tree.
Explore the cladistics approach: Cladistics is a method of classifying species based on common ancestry and branching patterns, focusing on shared derived characteristics (synapomorphies).
Define homology: Homology refers to traits inherited by two different organisms from a common ancestor. It is a key concept in constructing phylogenetic trees as it helps identify evolutionary relationships.
Identify the principle not used: The principle of speciation is not typically used as a direct method for constructing phylogenetic trees. Speciation is a process that results in the formation of new species, but it is not a principle or method for tree construction.
Related Videos
Related Practice
