Transcript Molecules as Evidence of Evolution (PowerPoint) Madison 2006

Evolution I
Group 3: Eval Devos
Karina Baum, Peter Busher, Sam Hammer,
Gaston Pfluegl & Erin Sanders-Lorenz
Title: Molecules as Evidence of Evolution
Boston University
UCLA
Organismal form indicates evolutionary
relationships.
A.
B.
C.
D.
Always
Often
Sometimes
Never
Learning Goal:
To infer evolutionary relationships by
comparing molecular structures and
functions among organisms.
Learning Objectives:
Identify evolutionary relationships
Describe limitations
Discover new ways
Construct evolutionary model
Fun with organisms
1. take a moment by yourself to consider how
these organisms are evolutionarily related.
2. work in groups of two or three and arrange the
images you were given. Organize them
according to which ones you think are most
closely evolutionarily related.
3. write down all the criteria you used to group
these organisms.
Which animal are alligators most
closely related to?
A.
Lizard
B.
Bird
C.
Bat
Which animal are hippos most
closely related to?
A.
Whale
B.
Alligator
C.
Rhino
Which organism are moths most
closely related to?
A.
Bacteria
B.
Plant
C.
Fungus
Which organism are flowers most
closely related to?
A.
Volvox
B.
Carnivorous
plant
C.
Fungus
Alligators are most closely related
A.
B.
C.
Hippos are most closely related to
A.
B.
C.
Moths are most closely related
A.
B.
C.
Flowers are most closely related to
A.
B.
C.
Which other criteria,
that we did not consider before,
may researchers have used to
arrive at the evolutionary
relationships we just observed?
Alligators are most closely related to
A.
B.
C.
Proteins
Hippos are most closely related to
A.
B.
DNA
C.
Moths are most closely related to
A.
B.
C.
Carbohydrate
Flowers are most closely related to
A.
B.
C.
Morphology and
molecular data
Protein
hippo
alga
bacterium
moth
whale
fungus
plant
Carbohydrate
DNA
Assignment
1 Minute Paper
1. Describe limitations of arranging evolutionary
relationships by form.
2. What are the new ways you discovered to
establish evolutionary relationships.