exam2 2 - Student name _ (100 pts total) AGR 3303 -...

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Student name ____________________________ (100 pts total) AGR 3303 - Genetics 13 Nov 2000 University of Florida - Fort Lauderdale Exam #2: MOLECULAR GENETICS Multiple choice (54 pts, 3 pts each) Please read these carefully . One and only one response (a, b, c, d, or e) completely and correctly answers the question, or completes the statement. Circle the appropriate response and turn in this exam. Make sure your circle is unambiguous. 1. What can you say about an organism with the following base composition? A (adenine)= 18% T (thymine)= 31% G (guanine)= 31% C (cytosine)=20% a. Its genetic material is probably double-stranded RNA b. This organism must have single-stranded DNA c. This organism must have double-stranded DNA d. This organism has collinearity between the pyrimidines and the purines e. This is mitochondrial DNA 2. If an experiment had used radioactively labeled human insulin DNA, in a microbial synthesis, what would you expect to find in the insulin protein produced (think carefully about this): a. radioactive P would occur in the insulin b. both radioactive P and S would occur in the insulin c. radioactive S would occur in the insulin d. neither radioactive P or S would occur in the insulin e. insulin would not be produced 3. Frameshift mutations are observed because: a. The DNA code is commaless b. The DNA code has stop codons c. The DNA code is antiparallel d. The DNA code is degenerate e. The DNA code is ambiguous
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AGR 3303 - Genetics, University of Florida - Fort Lauderdale Page 2/10 4. Human insulin can be produced by bacteria, using human DNA, which proves: a. DNA is a double helix b. human DNA is a transforming principal c. the DNA contains S, not P d. there is base pair complementarity e. bacteria are endosymbionts of people 5. Which statement is true of the double helix? a. T pairs involve two hydrogen bonds b. purine pairs with purine c. heating causes the strands to anneal d. G pairs with T e. U pairs with T 6. Where would you expect to find the genetic information describing the potential characteristics of Tyrannosaurus rex? a. In virtually every cell of its body. b. Depends on the characteristic; eye color genes would be found in its eyes, hemoglobin genes in its erythrocytes. c. In the ribosomes. d. Only in its germ cells, i.e., primary spermatocytes or oocytes. e. In a place in New Mexico called Roswell.
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This note was uploaded on 07/30/2011 for the course AGR 3303 taught by Professor Gallio during the Fall '08 term at University of Florida.

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exam2 2 - Student name _ (100 pts total) AGR 3303 -...

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