BMB401 F04 T5 - I(Name have neither received nor given help...

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
I, (Name) _________________________________________ have neither received nor given help BMB 401-506 Fall 2004 Fifth (Optional) Examination December 14, 2004 During the exam you should not be in possession of a beeper or a cellular phone. Please place your beeper and/or cellular phone in your book bag (after you turn it off!!!) and place the bag against the wall of the room. THESE ARE STANDARD SINGLE ANSWER MULTIPLE CHOICE QUESTIONS. THE POSSIBLE ANSWERS ARE LABELED A,B,C,D AND E. SELECT THE SINGLE BEST ANSWER AND MARK THE APPROPRIATE CIRCLE ON THE SCANTRON ANSWER SHEET. BUBBLE IN YOUR NAME AND ID# (C# ONLY PLEASE).There are 44 questions. You will receive full credit for 42 correct answers. 1. Which ONE of the following enzymes is NOT found in significant amounts in the muscle? A. Phosphoglucomutase B. Glycogen synthase C. Glycogen phosphorylase D. Glucose-6-phosphatase E. Enolase 2. The reaction of the synthesis of PRPP for purine synthesis (and other reactions) from ribose 5-phosphate also produces: A. ADP B. AMP C. ATP D. GDP E. Pyrophosphate 3. RNA polymerases can synthesize all of the following EXCEPT: A. mRNA B. Primers for DNA synthesis C. rRNA D. Small RNAs for splicing of pre-mRNA E. Telomeres 4. A potent inhibitor of protein synthesis that acts as an analogue of aminoacyl-tRNA is: A. Mitomycin C B. Streptomycin C. Nalidixic acid D. Rifampicin E. Puromycin Page 1 of 8
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
I, (Name) _________________________________________ have neither received nor given help 5. How many high-energy phosphate-bond equivalents are utilized in the process of activation of amino acids for protein synthesis? A. Zero B. One C. Two D. Three E. Four 6. The removal of introns and subsequent self-splicing of adjacent exons occurs in some portions of primary ribosomal RNA transcripts. The splicing of introns in messenger RNA precursors is: A. RNA-catalyzed in the absence of protein B. Self-splicing C. Carried out by spliceosomes D. Controlled by RNA polymerase E. Regulated by RNA helicase 7. Which of the following statements correctly describes the recombinant DNA tool known as plasmids? A. They are found more commonly in viruses than in bacteria B. They are single-stranded circles C. They sometimes enhance bacterial susceptibility to antibiotics D. They sometimes enhance bacterial resistance to antibiotics E. They are too small to be useful as vectors for the cloning of mammalian DNA segments 8. The process that occurs at the 5 amino position of cytidine and often correlates with gene inactivation is: A. Gene conversion B. Sister chromatid exchange C. Pseudogene D. Gene rearrangement E. DNA methylation 9. A sample of human DNA is subjected to increasing temperature until the major fraction exhibits optical density changes due to disruption of its helix (melting or denaturation). A smaller fraction is atypical in that it requires a much higher temperature for melting. The
Background image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

Page1 / 8

BMB401 F04 T5 - I(Name have neither received nor given help...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online