Bio 112 Exam 4 Review

1
Bio 112 Exam 4 Review
2

• Where would you find the anticodon.
• mRNA
• DNA
• protein
• tRNA
• All of the above

3

• Which of the terms below is appropriate for a
  region of the gene which contains noncoding
  information and must be excised from the mRNA
  prior to translation.
• intron
• exon
• megatron

4

• Which type of operon is usually off (not
  expressed) and must be turned on to be active.
• repressible
• inducible
• both

5

• What enzyme does a Retrovirus process?
• a. An endonuclease
• b. Lactase
• c. Reverse Transcriptase
• d. Helicase
• e. DNA ligase

6

• Which type of mutation results in the formation
  of a stop codon
• Silent
• Missense
• Nonsense

7

• This technique is used to separate DNA fragments
  (pieces) based on size of the fragment.
• transformation
• Polymerase chain reaction
• DNA sequencing
• transduction
• Gel electrophoresis

8

• Chronic Wasting Disease is caused by what type of
  infectious agent?
• Prion
• Virus
• Bacteria

9

• Which of the naturally occurring methods of
  recombination in bacteria involves a pilus?
• transduction
• conjugation
• transformation
• Sexual reproduction

10

• A A A C T A T G T T T G C G C G C A T G A A C T
  A A T C G C 
• MAKE THE COMPLEMENTARY STRAND
• T T T G A T A C A A A C G C G C G T A C T T G A
  T T A G C G
•   
• USING THE NEW STRAND AS TEMPLATE, TRANSCRIBE A
  mRNA 
• A A A C U A U G U U U G C G C G C A U G A A C U
  A A U C G C
•  
• TRANSLATE THE CONSTRUCTED mRNA INTO THE
  APPROPRIATE AMINO ACID CHAIN
• A U G UUU GCG CGC A
  U G A A C U A A
• Met - Phe - Ala - Arg
  - Met - Asn