Chapter 17 Life 102

12 September 2022
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question
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? a.RNA processing b.gene expression c.polypeptide formation d.transcription e.translation
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d.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? a.RNA processing b.gene expression c.polypeptide formation d.transcription e.translation
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e.translation
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What name is given to the process in which pre-mRNA is edited into mRNA? a.RNA processing b.gene expression c.polypeptide formation d.transcription e.translation
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a. RNA processing
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Polypeptides are assembled from _____. a.hexoses b.glycerol c.nucleotides d.proteins e.amino acids
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e.amino acids
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RNA processing converts the RNA transcript into _____. a protein DNA a eukaryotic cell mRNA a polypeptide
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mRNA
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During RNA processing a(n) _____ is added to the 5' end of the RNA. 3' untranslated region a long string of adenine nucleotides 5' untranslated region coding segment modified guanine nucleotide
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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. 3' untranslated region a long string of adenine nucleotides 5' untranslated region coding segment modified guanine nucleotide
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a long string of adenine nucleotides
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Spliceosomes are composed of snRNPs and other proteins polymerases and ligases introns and exons the RNA transcript and protein snRNPs and snurps
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snRNPs and other proteins
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The RNA segments joined to one another by spliceosomes are _____. caps exons snRNPs tails introns
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exons
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Translation occurs in the _____. cytoplasm lysosome nucleus Golgi apparatus nucleoplasm
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cytoplasm
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The direction of synthesis of an RNA transcript is _____.
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5' ā€”> 3'
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Which of these correctly illustrates the pairing of DNA and RNA nucleotides? GTTACG CAATCG GTTACG CAAUGC GTTACG GTTACG GTTACG ACCGTA GTTACG UAACAU
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GTTACG CAAUGC
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The anticodon of a particular tRNA molecule is changeable, depending on the amino acid that attaches to the tRNA. catalytic, making the tRNA a ribozyme. the part of tRNA that bonds to a specific amino acid. complementary to the corresponding triplet in rRNA. complementary to the corresponding mRNA codon.
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complementary to the corresponding mRNA codon.
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What is the process called that converts the genetic information stored in DNA to an RNA copy? Translation Transcription Replication Translocation
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Transcription
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DNA does not store the information to synthesize which of the following? Proteins Organelles DNA Messenger RNA
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Organelles
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Transcription begins at a promoter. What is a promoter? Part of the RNA molecule itself A site where many different proteins will bind A site found on the RNA polymerase A site in DNA that recruits the RNA Polymerase
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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? The promoter is a site at which only RNA polymerase will bind. The promoter is a nontranscribed region of a gene. The promoter is a site found on RNA polymerase. The promoter is part of the RNA molecule itself.
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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? Base pairing between the DNA template strand and the RNA nucleotides The previous base The order of the chemical groups in the backbone of the RNA molecule Base pairing between the two DNA strands
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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? Identical Complementary Covalently bound Permanently base-paired
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Complementary
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What happens to RNA polymerase II after it has completed transcription of a gene? It begins transcribing the next gene on the chromosome. It is free to bind to another promoter and begin transcription. It is degraded. It joins with another RNA polymerase to carry out transcription.
answer
It is free to bind to another promoter and begin transcription.