Topic 1 Flashcards

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1
Q

targeted studies

A
  • examine one of a few specific moleucles
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2
Q

untargeted studies

A
  • trying to examine all the moelcuels of one type to see global changes
  • often called profiling as the researcher is trying to document a whole collection
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3
Q

replicates

A
  • repeating experiments multiple times to allow for statistical analysis
  • technical vs. biological
  • looking for variation
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4
Q

technical replicate

A
  • using the same outside system multiple times and keeping the same sample the whole time
  • look for system changes that could be confounded
  • from a single of water, you repeat the measurement three times
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5
Q

biological replicates

A
  • seeing what naturally changes in the system
  • using different samples and keeping the system the same
  • ex. you take their samples of 1L bottles of water and conduct the measurement of each
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6
Q

positive control

A
  • sample produces the same results as compared to something that has been identified to produce such answers
  • proving that the technique works properly
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7
Q

negative control

A
  • sample produces an improper or wrong results but it is expected as it has been researched before
  • proving that the sample is actually correct due to the controls put in placed
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7
Q

model organism

A
  • non-human species that are commonly used to study biological traits with the goal of applying discoveries to other organisms
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8
Q

Common model organisms

A
  • yeast
  • worm
  • fly
  • fish
  • plant
  • mouse
  • frog
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9
Q

non-model organism

A
  • an organism that is not established as a model-organism by reseachers
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10
Q

promoter

A
  • cis-element upstream of the gene where proteins bind to initiate transcription
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11
Q

cis and trans element

A
  • cis = same strand
  • trans = different strand
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12
Q

mRNA

A
  • term used to describe the spliced transcipt
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13
Q

ORF/CDS

A
  • open reading frame/coding sequence
  • start with a start codon and end with stop codon
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14
Q

UTR regions

A
  • 5’ is upstream on DNA, pre-mRNA and mRNA
  • 3’ is downstream
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15
Q

Poly A addition signal

A
  • exist in DNA, pre-mRNA and mRNA
  • kept in the 3’ UTR
16
Q

intron and exon

A
  • intron is what gets spliced, only shows in DNA and pre-mRNA
  • exon is what is expressed, only shown in DNA and pre-MRA and technically mRNA but at that point, the whole strand is the exon so we just call it the mRNA
17
Q

direction of transcription

A
  • will always go from 5’ UTR to 3’ UTR
  • upstream to downstream