practice exam 4

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a frameshift mutation in a gene encoding a protien

result in the production of a nonfunctional peptide
translation
- a single mRNA have several ribosomes attached
- language of nucleotides is changed to language of amino acids
- there are three stop codons
- molecule of tRNA can bind to both an mRNA and an amino acid
transformation is the

transfer of DNA from a donor to a recipient by naked DNA in a solution
enzymes reqired for DNA replication
- DNA polymerase
- DNA ligase
- RNA polymerase
- helicase
DNA polymerase

makes a molecule of DNA from a DNA template
DNA ligase

joins segments of DNA
RNA polymerase

makes a molecule of RNA from a DNA template
genetic change in bacteria can be brough about by
- mutation
- conjugation
- transduction
- transformation
- not: transcription
Chemical 5-bromouracil

mutagen becuase it is similar in structure but not base pairing ability to thymine
pro-ala-gly

CCA GCG GGC
central dogma
- involving information transfer in cells
- replication
- translation
- transcription
- not: transformation
inducible enzyme

enzyme produced in response to the presence of a substrate like lactose
if the template is from a human cell

dna synthesized would be most similar to human DNA
a mutation will result in
- a change in the DNA sequence
- a change in the amino acid sequence
DNA polymerase requires
- a 3' -OH nucleotide primer
- RNA polymerase doesent
involved in translation
- ribosome
- anitcodon
- messenger RNA
- start codo AUG
- not:inducer
damage caused by UV radiation

results in the formation of thymine dimers
a plasmid cleaved with ECORI can recombine

with another plasmid that has been digested with ecoRI
missense mutation

causes the least amount of change in a gene
retro viruses

have reverse transcriptase

Author

andreathors16

150855

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practice exam 4

Description

test 4

Updated

4/29/2012, 6:09:56 AM

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