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bio 2200 Final Exam
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Biology
Undergraduate 3
04/30/2009

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Term
Elongation factor is sensitive to
diphtheria toxin in:
a) eukaryotes
b) archea
c)prokaryotes
Definition
a & b
Term
spliceosome.
Definition
splices out introns
Term
both induction and repression
are types of ____________ REGULATION
a)negative
b)positive
Definition
a
Term
What type of bacteria are involved in quorum sensing?
Definition
G-
Term
The glucosylated DNA is resistant to virtually all __________ ______________
Definition
restriction endonucleases
Term
final electron acceptor in fermentation
Definition
pyruvate
Term
Transformation
Definition
conversion of normal cells in to tumor cells
Term
Which of the following is a soluble electron carrier?
Definition
Coenzyme Q
Term
A. Point mutations
Definition
Changes of a single base
Term
Silent-
Definition
change in the DNA sequence but not change the protein
sequence. Same amino acid is inserted since the code is
degenerate
Term
Nonsense mutations
Definition
Conversion of an amino acid codon to a stop
codon
Term
Missence mutation
Definition
Change the codon for one amino acid to
another.
Term
Transition mutation
Definition
Pur to Pur (A to G) or Pyr to Pyr (C to T)
Term
Transversion mutation
Definition
Pur to Pyr (A to T) or Pyr to pur (T to A)
Term
Transformation
Definition
DNA present in the surrounding medium passes
through the cell membrane and becomes integrated into the bacterial
genome.
Term
Transduction:
Definition
DNA from the chromosome of a phage infected bacterium
is accidentally encapsidated instead of the viral DNA and when this
virus particle attaches to another bacterium and injects this host DNA it
becomes integrated into the bacterial chromosome.
Term
Conjugation
Definition
Two types
A. Plasmid transfer: Plasmid carries genes necessary for its transfer.
B. Chromosome transfer. A conjugative plasmid integrates into the
chromosome and when it tries to conjugate it attempts to transfer
the entire chromosome.
Term
Streptomycin
Definition
kills the cell by binding to the ribosome
and inhibiting protein synthesis.
Term
Analyzing genome sequences to extract data
Definition
mining
Term
Metagenomics
Definition
environmental genomics: genomic analysis of all genomes of all organisms inhabiting a particular environment
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