Bio Bootcamp
Evolution Review
Sample
Question
Population A
Population B
This graph illustrates changes in two different lizard populations
over time. Which process MOST LIKELY led to the change in
the allele frequency for population B?
A. Natural selection acting on a harmful trait
B. Natural selection acting on a beneficial trait
C. Natural selection acting on a dominant trait
D. Natural selection acting on a recessive trait
Sample Question
A mutation occurs in the genes that code for coat color in
caribou. Which change will most likely result from this
mutation?
A. A change in the selection pressures acting on coat
color.
B. A change in the coat-color genes of deer predator
species
C. An increase in coat-color diversity in the population
D. An increase in the number of genes for coat color in
the population.
Sample
Question
The skeletons of vertebrate forelimbs contain variations
of structures that were present in their common
ancestor. What has MOST LIKELY cause the variation
in forelimbs?
A. Changes in muscle structure
B. Changes in genetic code
C. Changes in vestigial structures
D. Changes in artificial selection
Misconception: “Evolution is ‘just’ a theory.”
Response: Scientific
theories are explanations
that are based on lines of
evidence, enable valid
predictions, and have
been tested in many
ways. In contrast, there is
also a popular definition
of theory—a “guess” or
“hunch.” These conflicting
definitions often cause
unnecessary confusion
about evolution.
Evolution by Natural Selection
• EVOLUTION is the
THEORY of how
organisms have
changed over time.
• Charles Darwin did
NOT make this up!
• NATURAL SELECTION
is the MECHANISM
by which Evolution
takes place.
• It does not attempt
to explain how life
began.
Natural Selection
Kettlewell – England – Peppered
Moths
Allelic Frequency
Speciation
Founder Effect/Bottleneck
Geographic Isolation
Habitat Isolation - Lizards
Mechanical Isolation
Mechanical
Isolation
Behavioral Isolation
Temporal Isolation
Reproductive Isolation
Types of Evolution
Convergent Evolution
Divergent Evolution
Artificial Selection
Coevolution
Fossils
Biogeography
Chapter 15
Biochemical
Hemoglobin
Comparison
Section 2 Evidence of Evolution
Chapter 17
Biochemical
Section 2 Systematics
Similarities in Amino Acid Sequences
Universal Genetic Code
Homologous
Structures
• Forelimbs of
vertebrates
Analogous Structures
Vestigial Structures
Chapter 15
Section 2 Evidence of Evolution
Evidence of Whale
Evolution
Embryology