Honors Biology
Test- 40 points
Evolution
Due 5/23
EVOLUTIONS TAKE HOME TEST
Directions: Please answer FOUR of the following questions completely, using examples
to support your answers. Please TYPE your answers (double-spaced 12 point font) and
put them in numerical sequence (if you choose to answer Q#6, hand in that page).
You may not consult in any form with any other person while doing this take-home
exam. You may, however, consult our textbook, your class notes, and your own
homework. You may NOT use the internet for any purpose other than accessing our
class Power Points. NO two papers with identical answers (or nearly identical, or even
with the same WORDS) will be accepted. Okay, I’m exaggerating a bit…but listen, If
they are the same, the grade will be zero for BOTH individuals! I’m not kidding. Do I
look like I’m kidding? Please, just do your own work.
Answer any 4 of the following questions.
1.
What is the difference between micro and macroevolution? Read the
attached articles from Science News and explain how each story relates to
either process.
2.
Explain how organisms are currently classified. Include a brief history of
classification, some problems with early classification schemes, and what sort
of evidence is being used to classify organisms today.
3.
Describe how scientists use each of the following as evidence for evolution
(may need textbook), and provide an original (ie, NOT found in your textbook
or on one of our class Power Points) example of each.
a)
b)
c)
d)
e)
4.
comparative biochemistry
comparative anatomy
comparative embryology
vestigial structures
the fossil record
Do the following with reference to the Hardy-Weinberg model.
a. Calculate, showing all work, the frequencies of the alleles and the
frequencies of the genotypes in a population of 50,000 rats, of which
12,500 are white and 37,500 are black. (In rats the white color is due to a
recessive allele, b, and the black is due to a dominant allele, B.)
b. If the homozygous dominant condition were to become lethal, what
would happen to the allelic and genotypic frequencies in the rabbit
population after two generations? Calculate the allele frequencies after 2
generations.
5.
Compare how Darwin, Lamarck, and a creationist would explain the evolution
of the modern appearance of Erethizon dorsatum (The North American
porcupine).
Honors Biology
Test- 40 points
6.
I.
III.
Evolution
Due 5/23
Match the following terms to the diagram that best illustrates the term.
a. punctuated equilibrium
b. divergent evolution
c. gradualism
d. speciation
e. disruptive selection
f. convergent evolution
g. parallel evolution
h. directional selection
i. adaptive radiation
j. stabilizing selection
II. _____
IV. _____
VI.
V.
VIII. __
VII.
X.
IX.
Honors Biology
Test- 40 points
Evolution
Due 5/23
7. What is genetic drift and when is it likely to happen in nature? Explain what
type of population is most susceptible to the effects of genetic drift and why.
Provide some real world examples of genetic drift. Be sure to explain how this
can lead to inbreeding depression and what can be done to remedy this
problem.
8. What is the difference between gradualism and punctuated equilibrium in terms
of describing the process of evolution? How would a scientist who supports
gradualism explain gaps in the fossil record? How would a scientist who
supports punctuated equilibrium explain the gaps? What sort of evidence
would you need to convince you to accept gradualism rather than punctuated
equilibrium?