Question

Each branching point in a cladogram (a) is called a root (b) represents a clade (c) represents the divergence of two or more groups from a common ancestor (d) represents horizontal gene transfer (e) marks the divergence of two kingdoms

Name: Problem 3, Chapter 23: Biology
Uploaded: 2021-07-29T19:50:53-08:00
Duration: 2 min 25 s
Channel: Allison Reynolds
Description: Each branching point in a cladogram (a) is called a root (b) represents a clade (c) represents the divergence of two or more groups from a common ancestor (d) represents horizontal gene transfer (e) marks the divergence of two kingdoms

   Each branching point in a cladogram (a) is called a root (b) represents a clade (c) represents the divergence of two or more groups from a common ancestor (d) represents horizontal gene transfer (e) marks the divergence of two kingdoms

Biology

Eldra P. Solomon,… 10th Edition

Chapter 23, Problem 3

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Solved by Expert Allison Reynolds

07/29/2021

Step 1

A cladogram is a diagram used in cladistics which shows relations among organisms. The key aspect of a cladogram is its branching points, each of which represents the divergence of two or more groups from a common ancestor. Show more…

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Each branching point in a cladogram (a) is called a root (b) represents a clade (c) represents the divergence of two or more groups from a common ancestor (d) represents horizontal gene transfer (e) marks the divergence of two kingdoms

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Key Concepts

Common Ancestor

A common ancestor is an organism from which two or more different species have evolved. In cladistics, the concept of a common ancestor is central, as branching points in a cladogram indicate the divergence of groups from that ancestor.

Clade

A clade is a group of organisms that includes a single common ancestor and all of its descendants. It is essentially a branch on the cladogram, representing a complete lineage in an evolutionary context.

Cladogram

A cladogram is a diagram that represents the evolutionary relationships among organisms based on shared derived characteristics. It is used to illustrate how species are related through common ancestry and divergence over time.

Branching Point (Node)

A branching point, or node, in a cladogram is the point at which a single lineage diverges into two or more descendant lineages. This represents the moment when different groups evolve from a common ancestral species.

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