june01 - June 2001 Multiple Choice Test Answers: d, d, a,...

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June 2001 Multiple Choice Test Answers: d, d, a, c, b, e, d, b, a, e, c, b, d, b, e, c, e, c, a, a, c, b, a, e, a, e, d, c, d, b, a, b, c, a, e, b, a, e, d, b, e, c, e, d, e, d, e, c, c, c, b, a, e, d, e, a, b, d, d, b, e, d, c, b, a, b, a, c, a, a. 1. Which the following is CORRECT? a) Glutamine is a non-polar amino acid. b) Glutamate is a basic amino acid. c) Methionine is an acidic amino acid. d) Lysine is a basic amino acid. e) b and c 2. Which of the following statements describes a DIFFERENCE between the structure of DNA and RNA? a) In DNA, the nitrogenous base is attached to carbon 1’. b) In DNA, the nitrogenous base can be uracil. c) The 3’ end of RNA has an hydroxyl group on carbon 3’. d) In DNA, there is no hydroxyl group attached to carbon 2’. e) None of the above. 3. The single letter code for the peptide a) alanine-lysine-histidine is AKH. b) phenylalanine-leucine-tyrosine is PLT. c) cysteine-proline-tryptophan is CPT. d) valine-glutamic acid-lysine is VEL. e) glycine-tyrosine-threonine is GKT. 4. During DNA replication, a) deoxyribonucleoside monophosphates are used as substrates. b) the nucleotide is added to the 5’ carbon. c) pyrophosphate is produced. d) DNA polymerase moves towards the 3’ end of the template strand. e) c and d 5. The alpha helix is an example of what type of protein structure? a) primary b) secondary c) tertiary d) quaternary
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6. The melting temperature (Tm) a) is the temperature at which all of the double strands of DNA have separated. b) increases when the number of C and G nucleotides increases. c) is the temperature at which half of the double strands of DNA have separated. d) increases when the number of A and T nucleotides increases. e) b and c 7. Which of the following is correct? a) Prokaryotic cells lack ribosomes. b) Chromosomes in prokaryotic cells are linear. c) The DNA in eukaryotic cells is restricted to the nucleus. d) Eukaryotic cells contain endoplasmic reticulum. e) Mitochondria are found in prokaryotic cells. 8. E. Coli were grown in medium containing 15 N-ammonium for a long time and then switched to medium containing 14 N-ammonium. A single bacterium from the old medium divides twice in this new medium to produce 4 cells. You would expect that a) The individual strands of DNA in the cells would contain both 15 N and 14 N. b) DNA in all four of the cells would contain 14 N. c) DNA in all four of the cells would contain 15 N. d) There would be two cells in which the DNA would contain only 15 N. e) b and d 9. DNA replication in eukaryotic cells is usually a) bidirectional from many origins of replication. b) unidirectional from one origin of replication. c) unidirectional from two origins of replication. d) bidirectional from one origin of replication.
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This note was uploaded on 03/04/2012 for the course BIOM 426 taught by Professor Staff during the Fall '08 term at WVU.

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june01 - June 2001 Multiple Choice Test Answers: d, d, a,...

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