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Question
Transcription of a typical gene encoding a polypeptide in eukaryotes involves all of the following EXCEPT:a. the splicing together of a number of exons in the DNA prior to transcription.
b. synthesis by RNA polymerase II.
c. transcription of DNA corresponding to both introns and exons.
d. transcription of the DNA which encodes the N-terminal of the polypeptide prior to DNA encoding to the C-terminal.
e. addition of the poly(A)+ tail.
Answer
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Related questions
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In general, proteins whose folding is chaperone-dependent start the folding process first with ____ and then are passed as ____ folded intermediates to ____.
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b. Hsp90; un-; chaperonin
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d. Hsp40; partially; Hsp70
e. Hsp60; partially; Hsp40
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In a class I aminoacyl-tRNA synthetase, which of the following reacts with the acyl phosphate formed during the reaction of ATP with the amino acid?a. 5'-hydroxyl of the nucleotide on the 5' end of the tRNA moleculeb. 3'-hydroxyl of the nucleotide on the 5' end of the tRNA moleculec. 2'-hydroxyl of the nucleotide on the 5' end of the tRNA moleculed. 3'-hydroxyl of the nucleotide on the 3' end of the tRNA moleculee. 2'-hydroxyl of the nucleotide on the 3' end of the tRNA molecule
Q:
Each of the following statements regarding ways in which eukaryotic protein synthesis differs from prokaryotic protein synthesis is true EXCEPT:
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e. all of the above are true statements
Q:
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Q:
Termination of translation in prokaryotic cells requires:
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c. ternary interaction of the release factor and the termination tRNA with the termination codon.
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Q:
Which of the following does not reqire GTP hydrolysis?
a. the formation of the initiation complex (translationally active 70 S ribosome complex).
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Q:
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Q:
Mitochondrial and chloroplastic ribosomes resemble ____ ribosomes.
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c. higher eukaryotic
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Q:
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b. asp; ala; polycationic
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Q:
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Q:
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The linkage between the amino acid and the tRNA in an amino-acyl tRNA complex is:
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Q:
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Q:
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Q:
All are correct about enhancer sequences in eukaryotic cells EXCEPT:
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Q:
All are characteristics of catabolic activator protein (CAP) EXCEPT:
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Q:
Characteristics of rho factor include all EXCEPT that it:a. recognizes and binds C-rich regions of RNA transcripts.b. binding regions must be ribosome free.c. advances in the 5'->3' direction to the transcription bubble.d. unwinds transcript and template to free nascent RNA.e. all are true.
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Q:
Which of the following would most likely cause a frameshift mutation?
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Q:
Which of the following statements explains why the adenine analog, 2-aminopurine (2-AP), can cause mutations in DNA when it is inserted in place of a site normally occupied by A?
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Q:
Misincorporation of all subsequent amino acids results from ____ mutations.
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Q:
Mutations in DNA may result from all of the following EXCEPT:
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b. physical insults on the cell, such as UV light.
c. errors in transcription.
d. chemical mutagens.
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Q:
A transition mutation would be replacing A by:
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b. C.
c. U.
d. G.
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Q:
____ promotes the formation of covalent bonds between ____ thymine residues in a DNA strand creating a ____ ring called a thymidine dimer.
a. Visible light; adjacent; cyclohexyl
b. Visible light; nearby; cyclobutyl
c. UV light; adjacent; cyclobutyl
d. UV light; nearby; cyclohexyl
e. IR light; adjacent; cyclobutyl