Consider the tree below. Use parsimony to reconstruct the ancestral states at all of the nodes. For the clade containing species A–G, what is your inference of the ancestral state?
Added by Brent B.
Step 1
For example, if species A has state 0 and species B has state 1, note that down. Show more…
Show all steps
Your feedback will help us improve your experience
Supreeta N and 76 other Biology educators are ready to help you.
Ask a new question
Labs
Want to see this concept in action?
Explore this concept interactively to see how it behaves as you change inputs.
Key Concepts
Recommended Videos
Assume that this cladogram depicts the correct branching pattern for the five species. The states for eight characters are shown for each species. Assume unprimed states are plesiomorphic, that primed ones are apomorphic, and that double-primed states can evolve either from the plesiomorphic or a single-primed state. Assuming parsimony, infer (1) the branch (internodal segment) on the tree where each apomorphic state evolved and label it with a tick mark, and (2) infer the set of character states defining each labeled node (i.e., I, II, & III) and the common ancestor. In this instance, the common ancestor for the cladogram need not show the plesiomorphic state for all characters.
Supreeta N.
Consider the two phylogenetic hypotheses regarding the relationships of the animal phyla. The tree that is based on molecular evidence differs from the tree based on morphological evidence in that it __________
Madhur L.
7) Use the following genetic table to complete three hypothetical trees (label all state changes), then select the most parsimonious tree. [4]
Adi S.
Recommended Textbooks
Biology for AP Courses
Objective Biology for NEET
Introduction to General, Organic and Biochemistry
Transcript
18,000,000+
Students on Numerade
Trusted by students at 8,000+ universities
Watch the video solution with this free unlock.
EMAIL
PASSWORD