BI 173 - First Exam - 2004

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. The first concept, drawn from fossil studies, that was said to contradict
                           Biblical text was

                    a. A very old Earth                 b. Evolution                 c. Extinction
                    d. Ape ancestors of humans             e. Eve was a Buddhist

 

_______ 2. The process of meiosis starts with ______ and ends with _______.

                    a. Chromosomes...cells                     b. Haploid cells...diploid cells
                    c. Cells...chromosomes                     d. Diploid cells...haploid cells
                                        e. Something...something else

 

_______ 3. An electron beam, compared to a light beam,

                    a. Penetrates material easier                     b. Produces better resolution
                    c. Requires cheaper glass lenses             d. All of these
                                e. Just sound more, like, modern, y’know-?

 

_______ 4. Adaptive radiation usually involves which type of isolation in early stages?

                    a. Niche                        b. Geographic                   c. Species
                      d. Climate                                    e. Lonely

 

_______5. Uniformitarianism allows explanations for things that

                    a. Are very small                         b. Are hard to organize
                    c. Happened in the past               d. Extremely chaotic
                            e. Require everyone to dress the same

 

_______6. The biggest concentration of RNA in a eukaryote cell will 
                            most likely be in the

                    a. Microvilli                     b. Nuclear envelope                 c. Nucleolus
                    d. Membrane                                 e. RNAistususus

 

_______7. Which would be an example of convergent evolution?

                    a. The shape of snakes, eels, and earthworms
                    b. All primates having opposable thumbs
                    c. Peacock tails and ram horns both being used in mating displays
                    d. Similarities between embryos indicating hidden relationships 
                                 between groups
                    e. If "convergent" is the same as "confusing," then this exam

 

_______8. Which should be an epithelial tissue?

                    a. Leg muscle                 b. Bone                 c. Throat lining
                    d. Blood                                 e. Scented Puffs

 

_______9. In most animal excretory systems, blood is physically filtered. Then,
                             materials that have gone through the filters but are needed are
                             reabsorbed, followed by pumping out of wastes that wouldn’t 
                             fit through the filter. The 2nd and 3rd steps are

                    a. Both passive transport                             b. Active followed by passive
                    c. Both active transport                               d. Passive followed by active
                                e. You mean we actually have to apply this stuff??

 

_______10. Molecular clocks may involve a comparison of

                    a. Radioactive isotopes             b. Amino acids             c. Fossil layers
                    d. Critical features                             e. Tiny ticks & tocks

 

_______11. A trait produced by a several-step enzyme-mediated pathway 
                                  would have to be

                    a. Dominant                 b. Multiple gene                 c. Recessive
                    d. Intermediate                             e. Something I’d forget

 

_______12. Punctuated evolutionary rates should match with a past in which

                    a. Changes occur rapidly                     b. Changes occur slowly
                    c. Nothing has really changed              d. Changes occur at regular intervals
                                        e. Grammar was an important selection factor

 

_______13. Which biological molecule class gets its range of activity mostly 
                                through the molecules’ wide range of three-dimensional shapes?

                    a. Carbohydrates                  b. Nucleic Acids                 c. Lipids
                    d. Proteins                           e. Puttymers

 

_______14. An accepted fact about the natural world that Darwin used as a direct
                                basis for his Theory of Evolution by Natural Selection was

                    a. Individuals improve themselves and pass improvements to their offspring
                    b. Disease is an important factor in controlling populations
                    c. Few offspring survive long enough to reproduce
                    d. Mutations can produce significant changes in abilities quickly
                    e. I’m richer than you, so listen to me.

 

_______15. Thomas Malthus’ important ideas can be labeled as

                    a. Natural control of overpopulation
                    b. The inheritance of acquired characteristics
                    c. Ontogeny recapitulates phylogeny
                    d. Speciation through isolation
                    e. Boring stuff that really old guys can tell us

 

_______16. A term that can be applied to both base errors in DNA and
                            crossing-over inequities:

                    a. Segregation                 b. Linkage              c. Phenotype
                    d. Genetic redundancy         e. Forgotten

 

_______17. Links between very distant relatives are often found through

                    a. Close structural similarities                              b. Analogous features
                    c. Embryo comparisons                                     d. Behavioral similarities
                                                            e. Asking Grandma

 

_______18. Which two aspects are common areas of focus in neo-darwinism?

                    a. Acquired characteristics & inheritance
                    b. Ecosystems & gene pools
                    c. Fossils & tissues
                    d. Individuals & populations
                    e. Foreground and background

 

SHORT ANSWER. 

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

1. There are two very different basic methods used to test hypotheses. They are

 

 

2. What are two major materials found in a cell membrane?

 

 

3. Darwin saw the relationship between organism types on a mainland and nearby islands as varying with an extent according to what features of the islands?

 

 

4. What, in order, are the next levels or organization above the protoplasmic?


 

5. Explain (you can’t just give the name) how two of Mendel’s Laws of Inheritance work.

 

6. What feature or features makes connective tissue distinct from the other tissue types?

 

 

7. Of LaMarck’s two major ideas about evolution, which has the strongest influence still today?

 

 

8. What are the features of a colonial organism?

 

 

9. Other than being dead, or features that just apply to organisms in general, what are two features that most fossilized organisms had in common?

 

 

10. Give the main disadvantages of

HIGH
CHROMOSOME
NUMBER

LOW
CHROMOSOME
NUMBER

11. Name and define one of the types of bonds found commonly in biological molecules

 

 

12. Explain why the concept of artificial selection was important to forming a theory of evolution.

 

 

13. Briefly explain how the specific phospholipids of a cell membrane are determined genetically

 

 

14. What exactly is an allele?

 

 

15. Why is it impossible for many gendered animals to have sex-linked traits?

 

 

16. Osmosis presents a significant environmental challenge in which type of environment?

 

 

 

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.
Six Points Each. Partial credit is possible.

1. List six different general characteristics that all modern Life should have in common

 

 

 

 

 

 

2.

ASEXUAL REPRODUCTION

SEXUAL REPRODUCTION

Definitions-

 

 

Advantage
over the other:

Disadvantage
over the other:

3. For three requirements of Hardy-Weinberg Equilibrium, give the requirement and then give an evolutionary process connected specifically to that requirement being broken.

 

 

 

 

 

 

4. Give three matched sets of differences between -

CILIA

FLAGELLA




5. Give the name and basic function of three different non-nuclear cell organelles, found in animals, that are not projections of the membrane.




6. Give the steps necessary to bring about a change in species by Natural Selection. Don’t take the number of lines available as matching the number of steps - this is more like lined paper.







7. Number in chronological order the steps, according to the latest theories, of the rise of Life on Earth.

           Photo-

_____ synthesis

         Cambrian

____ Explosion

       Eukaryote

_____ Cells

           Move to

_____ Land

           Molecular

_____ Evolution

           Aerobic

___ Respiration

      Primordial

__Soup Forms

           First

_____ Cells

8. For three of the four subtypes of muscle tissue, give the name of the subtype, and give either a place where it is used or those features that make it distinct from the other subtypes

 

 

 

 

 

 

Link to Answer Key

BONUS QUESTIONS. 

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.

For Three Points, what significant event did snowball Earth come just before?

 

 

A significant cell projection structure used in amebas got left off the list. For Three Points, what was it?

 

 

How can a low chromosome number mimic the results of asexual reproduction? Four Points.

 

 

How might the scientific world be altered if Alfred Russel Wallace had died when his ship wrecked in his 20's? Three Points for Each change.

 

 

Briefly explain why urbanized Europe was the origin of many childhood diseases. Five Points.

 

 

What observations led to the expression "ontogeny recapitulates phylogeny"? Three Points.

 

 

What advantage does mitochondrial DNA give over nuclear DNA in evolutionary studies? Three Points.

 

 

What is generally true of organisms that have very traits that produce reproductive success but impair survival potential? Three Points.

 

 

Based upon modern evolutionary theory, state one thing that should be true of an organism that has remained largely unchanged over a very long period of time. Three Points.

 


  
     

HOME

Hit Counter