BIOL3200 - EVOLUTION FINAL EXAM QUESTIONS AND
ANSWERS WITH COMPLETE SOLUTIONS GRADED A++
LATEST UPDATE
What did Darwin discover?
evidence for natural selection and provided evidence to support the difference between
NS and evolution
What were the three major evolution concepts?
1. Each species was created separately
2. Acquired characteristics are passed on to offspring
3. Descent with modification - species change over time, give rise to other species and
share a common ancestor
What was Linneaus's theory of evolution
each species was created separately
What was Lamarck's theory of evolution?
characteristics were passed onto offspring
What was Darwin's theory of evolution?
species change over time and produce new species
What were the 4 ideas of uniformitarianism?
,1. Natural laws are constant across space and time
2. Principle of parsimony: try to explain the past by causes now
3. change is slow, steady and gradual
4. change is evenly distributed throughout space and time
Normally in humans, all the sons of a female homozygous for a sex linked
recessive gene will inherit that trait. True of False
True
What are six forms of mutation
- loss of function mutation
- gain of function
- Null mutation
- sex-linked X/Y mutation
- SRY mutation
- TDF mutation
An individual with Klinefelter Syndrome on has two barr bodies. TRUE OF FALSE
FALSE
One type of mutation involves the replacement of a purine with a purine, while
another causes the replacement of a pyrimidine with a purine or the reverse.
What general terms are associated with these two mutational phenomena?
Transition and Transversion
,How many barr bodies does an individual with Turner Syndrome have?
Zero
What is aneuploidy?
The condition of gaining or losing one or more chromosomes but not a complete haploid
set
A typical XX human female has one barr body.
TRUE
What is natural selection?
inherited characteristics become more or less common in a population interms of
reproductive success
Characteristics becoming more or less common in a population. What kind of
selection is this?
Natural selection
Natural selection can lead to speciation? (a population evolving to become two
separate species)
TRUE
Natural selection acts on individuals but causes consequences at the population
level
TRUE
Natural selection acts on the population
FALSE
What are the 4 forms of evolution?
Divergence, Convergence, Parallelism and Iterative evolution
, What is Divergence?
Evolution of a species away from a common form
What is convergence?
Evolution of unrelated taxa towards a common from
What is Parallelism?
Evolution of similar forms in similar ways by related taxa
What is Iterative evolution?
repeated evolution of a structure or form in a lineage
Physiological process for locating distant or invisible objects? What process is
this
Echolocation
Natural selection acts on genotypes
FALSE
Natural selection acts on phenotypes
TRUE
Natural selection impacts alleles
TRUE
What gene is responsible for echolocation?
The Prestin gene
What is marsupial convergence?
multiple linages are evolved to mimic eutherians
structures do not get more similar or more dissimilar but evolve in similar
trajectories. What process is this describing
ANSWERS WITH COMPLETE SOLUTIONS GRADED A++
LATEST UPDATE
What did Darwin discover?
evidence for natural selection and provided evidence to support the difference between
NS and evolution
What were the three major evolution concepts?
1. Each species was created separately
2. Acquired characteristics are passed on to offspring
3. Descent with modification - species change over time, give rise to other species and
share a common ancestor
What was Linneaus's theory of evolution
each species was created separately
What was Lamarck's theory of evolution?
characteristics were passed onto offspring
What was Darwin's theory of evolution?
species change over time and produce new species
What were the 4 ideas of uniformitarianism?
,1. Natural laws are constant across space and time
2. Principle of parsimony: try to explain the past by causes now
3. change is slow, steady and gradual
4. change is evenly distributed throughout space and time
Normally in humans, all the sons of a female homozygous for a sex linked
recessive gene will inherit that trait. True of False
True
What are six forms of mutation
- loss of function mutation
- gain of function
- Null mutation
- sex-linked X/Y mutation
- SRY mutation
- TDF mutation
An individual with Klinefelter Syndrome on has two barr bodies. TRUE OF FALSE
FALSE
One type of mutation involves the replacement of a purine with a purine, while
another causes the replacement of a pyrimidine with a purine or the reverse.
What general terms are associated with these two mutational phenomena?
Transition and Transversion
,How many barr bodies does an individual with Turner Syndrome have?
Zero
What is aneuploidy?
The condition of gaining or losing one or more chromosomes but not a complete haploid
set
A typical XX human female has one barr body.
TRUE
What is natural selection?
inherited characteristics become more or less common in a population interms of
reproductive success
Characteristics becoming more or less common in a population. What kind of
selection is this?
Natural selection
Natural selection can lead to speciation? (a population evolving to become two
separate species)
TRUE
Natural selection acts on individuals but causes consequences at the population
level
TRUE
Natural selection acts on the population
FALSE
What are the 4 forms of evolution?
Divergence, Convergence, Parallelism and Iterative evolution
, What is Divergence?
Evolution of a species away from a common form
What is convergence?
Evolution of unrelated taxa towards a common from
What is Parallelism?
Evolution of similar forms in similar ways by related taxa
What is Iterative evolution?
repeated evolution of a structure or form in a lineage
Physiological process for locating distant or invisible objects? What process is
this
Echolocation
Natural selection acts on genotypes
FALSE
Natural selection acts on phenotypes
TRUE
Natural selection impacts alleles
TRUE
What gene is responsible for echolocation?
The Prestin gene
What is marsupial convergence?
multiple linages are evolved to mimic eutherians
structures do not get more similar or more dissimilar but evolve in similar
trajectories. What process is this describing
