BIO188 Sample Final Exam 2 Part A Key S10

BIO188 Sample Final Exam 2 Part A Key S10 - 1 BIO188 Final...

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

View Full Document Right Arrow Icon
1 BIO188 Final SECTION A This exam contains 45 questions on 9 pages. Each question is worth 3.33 points (150 points total). File in your name, subject, section of the exam (PART A ), test version No. (= VI ), and Date on the Scantron sheet before you begin. Also BE SURE TO PUT YOUR NAME ON THE QUESTION SHEET . Read each question carefully and mark the letter corresponding to the SINGLE most correct answer on the scantron sheet. Use a No. 2 pencil only. Make dark marks. Erase any changes completely . Return the question sheet with your scantron sheet tucked inside it at the end of the exam. THIS IS ESSENTIAL. 1. Muscle cells and nerve cells in one species of animal owe their differences in structure to A. Having different genes B. Having different chromosomes C. Using different genes D. Having unique ribosomes 2. Which of the following is not a type of DNA-binding motif? A. helix-turn-helix B. zinc finger C. leucine zipper D. homeodomain E. disulfidedomain 3. DNA binding motifs: A. recognize unique patterns of base pair arrangements B. recognize the DNA backbone C. bind to the major groove of the DNA helix D. bind to the minor groove of the DNA helix E. both A and C 4. If one were to observe the activity of methylated DNA, it would be expected that it would A. Be replicating B. Be unwinding in preparation for protein synthesis C. Have turned off the process of transcription D. Be very active in translation E. Induce protein synthesis by not allowing repressors to bind with it
Background image of page 1

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

View Full DocumentRight Arrow Icon
2 5. A significant difference between eukaryotes and prokaryotes is that A. Gene expression is largely regulated by transcription in prokaryotes, but not in eukaryotes B. There is an absence of introns in prokaryotic genes C. Noncoding DNA sequences are found in prokaryotes, but not in eukaryotes D. Prokaryotes have less DNA but more noncoding segments than eukaryotes 6. A eukaryotic gene typically has all of the following features except A. Introns B. A promoter C. An operator D. Control elements E. A terminator 7. RNA polymerase binds to the A. Silencer B. Activator C. Operator D. Enhancer E. Promoter 8. Which of the following is an example of transcriptional control of gene expression? A. mRNA is stored in the cytoplasm and needs a control signal to initiate translation B. mRNA exists for a specific time before it is degraded C. there is an amplification of genes for rRNA D. RNA processing occurs before mRNA exits the nucleus E. Transcription factors bind to the enhancer and promoter regions 9. _______________ are DNA sequences that bind general transcription factors while _____________ are DNA sequences that bind specific transcription factors
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.

Page1 / 9

BIO188 Sample Final Exam 2 Part A Key S10 - 1 BIO188 Final...

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