BI 171 - First Exam - 2009

Links connect to relevant parts of the online book.

Multiple Choice.

Place the letter of the choice that best answers the question on the line to the left.
Two Points Each. NOTE: "e" answers are never the correct answer.

_______ 1.  A microscope's resolution is most closely related to its

                    a. Maximum magnification                     b. Ease of use                    c. Ability to focus clearly 
                    d. Basic expense                                   e. Mental state on New Year's Eve

_______ 2.  Which confounding factor would be most associated with postmodernism?

                    a. Experimenter bias                     b. Statistical error                    c. Outside interference
                   d. Null hypothesis                               e. One with a post in it (but a modern one)

_______ 3.  In modern science, peer review usually involves

                    a. Research supervisors                b. Journal editors               c. Laboratory colleagues
                    d. Fellow students            e. Bad habits

_______ 4.  The concept that you can understand a whole system by understanding how each piece of the system works:

                    a. Deconstructivism             b. Constructivism             c. Microconcepts
                   d. Reductionism             e. Jigsaw puzzle-ism

_______ 5.  Fossils are generally used to compare

                    a. Analogies             b. Homologies             c. Emergent properties
                    d. Genera             e. Stock portfolios

_______ 6.  All cells have

                    a. Cell membranes             b. Cell walls            c. Membranes or walls, but not both 
                    d. Nuclei            e. Locked doors

_______ 7.  In a test of new drugs, all test groups get the same basic treatment in order to figure in the

                    a. Double blind             b. Treatment effect             c. Patient effect 
                    d. Placebo effect             e. Most ways to divert money

_______ 8.  Which would be a direct observation?

                    a. You see a cell through a microscope
                    b. You hear a bird but can't see it
                    c. You read about a bright light seen in the sky last night 
                    d. You listen to a friend's story about how a skunk smells
                    e. You meet Steven Spielberg?

_______ 9.  When linkage occurs, alleles are

                    a. Similar in sequence             b. Similar in function            c. On a common chromosome 
                    d. All of these                        e. Going to show little hands when you point at them

_______ 10. Which would be a niche?

                    a. Top predator             b. Ground-covering plant             c. Internal parasite
                    d. All of these                e. Isn't that some sort of French snack?

_______ 11. Which experiment's main weakness is that its evidence is anecdotal?

                    a. A young gorilla is taught sign language 
                    b. A drug test control group is totally untreated
                    c. A field test of 100 elk is impossible to run a control for
                    d. A confounding factor is known but completely ignored
                    e. My particular study approach for this question

_______ 12. If a true-breeding dominant is crossed with a true-breeding recessive, the next generation
                                   will show what ratio?

                    a. All recessive             b. All dominant             c. Half and half 
                    d. 75% dominant, 25% recessive             e. Math? Math????

_______ 13. Which concept was first developed using Neurospora?

                    a. Mutations are inheritable             b. Linkage of chromosomes            c. DNA structure
                    d. Genes connect to single proteins                      e. Isn't that some sort of body wash?

_______ 14. A cell with a high chromosome number may have a

                    a. Increase in point mutations                           b. Problem during division
                    c. Higher chance of showing dominance           d. Lower chance of showing dominance 
                                                           e. Ego issue

_______ 15. If several groups share cladistically important ancestral features, they should be

                    a. Paraphyletic             b. Polyphyletic            c. Monophyletic
                    d. Cladophyletic            e. Facebook friends

_______ 16. If a spherical cell doubles in size (volume), its surface

                    a. Shrinks in size             b. Increases but doesn't double            c. Doubles in size
                    d. More than doubles in size            e. Is on the outside

_______ 17. Sectioning is very often a necessity in which case?

                    a. Too many variables                                          b. Evolution of multiple species in the same region
                    c. Preparation of chromosomes for reproduction    d. Preparing specimens for transmission microscopes
                                                   e. Selling concert tickets

_______ 18.  Which uses a uniformitarian approach?

                    a. Gradual evolutionary rate                             b. Punctuated evolutionary rate
                    c. Reproducibility in experiment design             d. Dominance genetics
                                                e. The Marines and the Cub Scouts

Short Answer.

Pick NINE questions to answer in the spaces provided.
NOTE: if you answer MORE than nine, only the first nine will be corrected.
Four Points each. Partial credit is possible.

1.  What is the likeliest situation for a species that very closely resembles an ancient fossil form?


2.  What two different wrong ideas are associated with LaMarck?


3.  Briefly explain how unicellular colonialism works.


4. Describe the two types of genetic redundancy.


5. What feature about virus activity led to what genetics discovery?




6.  Give the basic biological definition of sexual reproduction.


7.  According to Malthus, what are two different natural controls over population growth?


8.  What are two different factors that can induce mutations in Drosophila?


9.  Put the following groups in order from the largest to the smallest: Class, Family, Genus, Kingdom, Order, Phylum, Species, Suborder, Superclass.
1 4 7
2 5 8
3 6 9
10. In an experiment, what is an artifact?


11. Why is the fossil record for many groups fairly incomplete?


12. Give two different types of examples of epigenetic inheritance.


13. Why is knowing the human genome important when a discovery is made with yeast cells?


14. What does "ontogeny recapitulates phylogeny" mean?


15. In the history of Kingdom-based classification,
Which Kingdom
was eventually
Which was the
first Kingdom to
split from the basic

Long Answer.

Select and answer completely any four of the following questions.
Note: if you answer more than four, only the first four will be corrected.
Seven Points Each. Partial credit is possible.

1.  Name four of the Six "Basic" Kingdoms, and for each list enough traits to make it clearly different from the other five.








2.  When biologists are trying to decide whether viruses are truly alive, these are important:
Two traits viruses have IN COMMON with all living things.  
Two traits all living things should have that all viruses do not.  
3.  Microscopes can be split into two main groups based upon either listed feature. For each feature, name the groups.
Nature of the Imaging Beam

Interaction of Beam with Specimen

4.  Give four rules from the classic Cell Theory.




5. Answer the following questions about DNA - How do the components
(Adenine, Cytosine, Guanine,
Thymine) pair up?
How does the gene code
relate to the
coded protein sequence?

Which component changes /
are least dangerous,
and (briefly) why?

6.  Define these types of selection: ARTIFICIAL
7. Answer the following about
     classic Scientific Method:
Two features a good
hypothesis should have


Role served by the experimental variable


Purpose of the control test


8.  Give two different rules that apply to each in binomial nomenclature:







Link to Answer Key


Answer as many or as few as you wish. You can't lose points on the rest of the exam by getting these wrong. Partial credit is possible.

What used to be the common language of science? Three Points.

What sort of artificial system often seems to have emergent properties? Three Points.

What was thought to be the confounding factor in Redi's first experimental set-up? Three Points.

Give one reason why intelligent design is not thought to be science. Three Points.

How is a Law in physics generally different from a Law in biology? Three Points.

What is usually done with qualitative data in science? Three Points.

Why do electron microscopes have to have vacuums in them? Three Points.

When religious fundamentalists found the idea
of extinction to be contrary to their interpretation of the Bible, what scriptural approach was used to possibly allow it? Three Points.

How can a "brand new" feature evolve? Three Points.




BI 171

Michael McDarby


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