DNA Replication | DNA Basics | DNA Transcription | DNA Translation | Topic 7 Random |
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What is a semi-conservative process?
This process is used in DNA replication and is carried out by a complex system on enzymes.
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Who are Hershey and Chase?
These scientists conducted a series of experiments to prove that DNA is the genetic material in a cell.
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What is initiation of transcription?
This is the first step in DNA Transcription, where DNA strands are seperated.
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What is translation initiation?
This is the first step of DNA Translation.
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What are the A, P, and E sites?
These are the three tRNA binding sites on a ribosome.
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What is DNA Ligase?
This enzyme joins okazaki fragments together with phosphodiester bonds.
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What is Sulfur (32P)?
This isotope was radio-labelled "proteins" in the Hershey and Chase experiment.
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What occurs in the 5' to 3' direction?
RNA polymerase moves along the coding sequence, synthesizing RNA in this direction.
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What is a peptide bond?
This is the bond formed between the amino acids held by the tRNAs in the P and A sites.
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What is tRNA?
This type of RNA has a T arm and D arm.
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What is the 5' to 3' direction?
This is the direction in which DNA polymerase adds nucleotides to a polypeptide chain.
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Who are Rosalind Franklin and Maurice Wilkins?
These two women used x-ray diffraction to explore the structure of DNA.
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What is tRNA?
This clover-like structure contains four key regions and is essential in transcription.
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What is the elongation of polypeptides?
This process of DNA translation involves a repeated cycle of events.
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What is E. Coli?
The type of bacteria used in Hershey and Chase's experiment.
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What is DNA Gyrase?
This enzyme comes before helicase in DNA replication.
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What is a supernatant?
This is where radioactivity was found in the Hershey and Chase experiment using the 32S isotope.
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What is the rough ER?
This is the region where ribosomes can be found in eukaryotes.
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What is a stop codon?
When this is reached, translation stops.
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Who are Watson and Crick?
These two men took credit for Rosalind Franklin's DNA discoveries.
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What is the leading strand?
This strand can copy continuously, as it moves towards the replication fork.
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What is a helix?
The shape Rosalind Franklin discovered DNA was in her experiments.
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What is tRNA activation?
This process illustrates the enzyme-substrate specificity and the role of phosphorylation.
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What is the P site?
The tRNA detaches from this sight during translation termination.
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What are phosphates?
These form the outer backbone of DNA.
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