Bio Chapter 17 Mastering

11 September 2022
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question
the direction of synthesis of an RNA transcript is
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5' to 3'
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What is the process called that converts the genetic information stored in DNA to an RNA copy?
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transcription
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DNA does not store the information to synthesize which of the following
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organelles
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Transcription begins at a promoter. What is a promoter?
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A site in DNA that recruits the RNA Polymerase
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Which of the following statements best describes the promoter of a protein-coding gene?
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the promoter is a nontranscribed region of a gene.
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What determines which base is to be added to an RNA strand during transcription?
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Base pairing between the DNA template strand and the RNA nucleotides
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Which of the following terms best describes the relationship between the newly synthesized RNA molecule and the DNA template strand?
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complementary
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What happens to RNA polymerase II after it has completed transcription of a gene?
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It is free to bind to another promoter and begin transcription.
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Which of the following terms associated with transcription describe regions of nucleic acid?
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promotor, gene, terminator
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first transcription event
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RNA polymerase binds promoter
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second transcription event
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RNA polymerase transcribes gene
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third transcription event
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RNA polymerase reaches terminator
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last transcription event
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RNA polymerase exits gene, RNA is released
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A particular triplet of bases in the template strand of DNA is 5-AGT-3. What would be the corresponding codon for the mRNA that is transcribed?
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3-UCA-5
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Which of the following statements best describes the termination of transcription in prokaryotes?
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RNA polymerase transcribes through the terminator sequence, causing the polymerase to separate from the DNA and release the transcript.
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for any given gene, what ultimately determines which DNA strand serves as the template strand?
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the base sequence of the gene's promoter
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What name is given to the process in which a strand of DNA is used as a template for the manufacture of a strand of pre-mRNA?
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transcription
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What name is given to the process in which the information encoded in a strand of mRNA is used to construct a protein?
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translation
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What name is given to the process in which pre-mRNA is edited into mRNA?
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RNA processing
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polypeptides are assembled from
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amino acids
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RNA processing converts the RNA transcript into
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mRNA
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During RNA processing a(n) _____ is added to the 5' end of the RNA.
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modified guanine nucleotide
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During RNA processing a(n) _____ is added to the 3' end of the RNA.
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a long strand of adenine nucleotides
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Spliceosomes are composed of
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snRNPs and other proteins
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The RNA segments joined to one another by spliceosomes are
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exons
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translation occurs in the
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cytoplasm