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SCI 135 - Third Exam Fall 2012 Links connect to relevant parts of the online book.
MULTIPLE CHOICE.
On the line to the left, place the letter of the choice that best answers the question. Three Points Each. NOTE: "e" answers are never the correct answer.
1. In a double-stranded chromosome, a telomere can be found a. Holding each strand together b. Side-by-side - it is the name of the strands _______ c. Only during telophase d. At the end of each strand e. Only if you really really want to find it
2. What is done with a cell by endoplasmic reticulum is done by a human with their _______ a. Muscle system b. Nervous system c. Circulation system d. Digestive system e. Credit cards
3. A dominant allele works based upon the _______ a. Number of genes involved b. Power of the DNA code c. Likelihood of its being passed on d. Effect of the coded protein e. Quality of its, um, outfits
4. A plasmid is _______ a. Anything found between the nucleus and the cell membrane b. A type of mini-chromosome loop c. Thick cell projection d. Something that makes cell walls e. Not something you’d want to eat on a cracker
5. When two different genes are on the same chromosome, they _______ a. Are said to be linked b. Have to both be recessive c. Have to both be dominant d. All of the above e. Eventually get to hate each other
6. Transfer RNA would be doing its job in a __________ a. Nucleus b. Ribosome c. Golgi body d. Lysosome e. Bus station
7. Which act like zombies, converting victims directly into things like them? _______ a. Bacteria b. Prions c. Barr bodies d. Viruses e. Microzombies
8. The nuclear envelope is called that because it _______ a. Is folded over b. Is a regular membrane in a special place c. Is two membranes thick d. Is a special delivery of the golgi bodies
e. Always arrives just after its
deadlines
9. A point mutation occurs at what Apoint@? _______ a. Nucleotide b. Centromere c. Chromatid d. Anaphase
e. A mutation point
10.
In response to insulin, sugar moves from the blood into liver cells for
storage. _______ a. Passive transport b. Osmosis c. Facilitated diffusion
d. Active transport e. Liver
sweetening
11. A translocation mutation can cause genetic changes from _______ a. A different cell b. A different organelle c. Position effects d. A change in gender
e. Poor cell reception
12. Which cell function is closely associated with the presence of Golgi bodies? _______ a. Storage b. Secretion c. Reproduction d. Movement e. Golgi-something
SHORT ANSWER.
Answer any eight of the following questions for 4 Points Each. Note: if you answer more than eight, only the first eight will be corrected. You can get partial credit on these answers.
LONG ANSWER. Answer any four of the following questions for Eight Points Each. Note: if you answer more than four, only the first four will be corrected. You can get partial credit on these answers.
BONUS QUESTIONS
Answer as many as you are able. Wrong answers will not result in points being lost from the main exam. You can get partial credit on these answers.
When germs were discovered associated with diseases, where did people at first think they were coming from? Three Points.
How does treating a non-bacterial disease create antibiotic resistance in disease bacteria? Three Points.
In the lab, why did the plant cells shrink? Three Points.
What abilities do cancer cells have to “turn on” to make the cancer really dangerous? Three Points Each.
Why might a cell go through apoptosis? Three Points.
How does telomerase factor into aging? Three Points.
Molecules like chaperonins are active in what environments? Three Points.
Why would some species have much better DNA proofreading than humans do? Three Points.
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