How many homoplasies are in the tree? Give the nucleotide position number(s) and tell what character states were independently derived in which species.
How many homoplasies are in the tree? Give the nucleotide position number(s) and tell what character states were independently derived in which species.
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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Transcribed Image Text:The image is a phylogenetic tree, which visually represents the evolutionary relationships between different species or groups of organisms. Here's a detailed transcription and explanation:
### Phylogenetic Tree Explanation:
- **Nodes and Branches**: The tree consists of branches connecting different nodes, representing various species of turtles.
- **Species**:
- **Terrapin**
- **Black-knobbed**
- **Ouachita**
- **Ringed**
- **Yellow-blotched**
- **Pascagoula**
- **Pearl River**
- **Barbour's**
- **Alabama**
- **Escambia**
- **Branching Points**:
- **Ringed** and **Yellow-blotched** are closely related and share a common ancestor, indicated by the pink "infinity" symbol on their branch point.
- **Pearl River** shares a branch with **Pascagoula**, with a pink “S” marking their divergence.
- **Alabama**, **Barbour's**, and **Escambia** show another grouping, with a "6" marking the divergence between **Alabama** and **Escambia**.
### Educational Context:
A phylogenetic tree helps understand evolutionary pathways and shared characteristics among species. In this case, the turtles are grouped based on their evolutionary connections, shown by their proximity on the tree. Symbols like “infinity,” “S,” and “6” may represent genetic markers or specific traits studied in research.
Such diagrams are valuable educational tools for teaching genetics, evolution, and biodiversity.
Transcribed Image Text:How many homoplasies are in the tree? Give the nucleotide position number(s) and tell what character states were independently derived in which species.
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