Test
Transcription and Translation
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Preguntas del test (20)
1What is the process called that converts the genetic information stored in DNA to an RNA copy?
- A Translocation
- B Translation
- C Replication
- D Transcription
2DNA does not store the information to synthesize which of the following?
- AProteins
- B Organelles
- C Messenger RNA
- D DNA
3 Transcription begins at a promoter. What is a promoter?
- A A site where many different proteins will bind
- B A site in DNA that recruits the RNA Polymerase
- C Part of the RNA molecule itself
- D A site found on the RNA polymerase
4Which of the following statements best describes the promoter of a protein-coding gene?
- A The promoter is a nontranscribed region of a gene.
- B The promoter is part of the RNA molecule itself.
- C The promoter is a site at which only RNA polymerase will bind.
- D The promoter is a site found on RNA polymerase.
5 What determines which base is to be added to an RNA strand during transcription?
- A The order of the chemical groups in the backbone of the RNA molecule
- B The previous base
- C Base pairing between the two DNA strands
- DBase pairing between the DNA template strand and the RNA nucleotides
6Which of the following terms best describes the relationship between the newly synthesized RNA molecule and the DNA template strand?
- ACovalently bonded
- BPermanently base-paired
- CIdentical
- DComplementary
7 What happens to RNA polymerase II after it has completed transcription of a gene?
- A It is free to bind to another promoter and begin transcription.
- B It begins transcribing the next gene on the chromosome.
- C It is degraded.
- D It joins with another RNA polymerase to carry out transcription.
8 Which of these correctly illustrates the pairing of DNA and RNA nucleotides?
- AGTTACG
CAATCG - BGTTACG
CAAUGC - CGTTACG
GTTACG
- DGTTACG
ACCGTA
- EGTTACG
UAACAU
- AGTTACG
9 The direction of synthesis of an RNA transcript is _____.
- A 1' —> 5'
- B 5' —> 3'
- C 1' —> 3'
- D 3' —> 5'
- E 2' —> 4'
10During transcription in eukaryotes, a type of RNA polymerase called RNA polymerase II moves along the template strand of the DNA in the 3'→5' direction. However, for any given gene, either strand of the double-stranded DNA may function as the template strand.
- A which of the two strands of DNA carries the RNA primer
- B the location along the chromosome where the double-stranded DNA unwinds
- C the base sequence of the gene's promoter
- Dthe location of specific proteins (transcription factors) that bind to the DNA
11After transcription begins, several steps must be completed before the fully processed mRNA is ready to be used as a template for protein synthesis on the ribosomes.
- A A cap consisting of a modified guanine nucleotide is added to the 5' end of the pre-mRNA.
- BA poly-A tail (50-250 adenine nucleotides) is added to the 3' end of the pre-mRNA.
- CNoncoding sequences called introns are spliced out by molecular complexes called spliceosomes.
- D A translation stop codon is added at the 3' end of the pre-mRNA.
- E Coding sequences called exons are spliced out by ribosomes.
12 During RNA processing a(n) _____ is added to the 5' end of the RNA.
- A 3' untranslated region
- B a long string of adenine nucleotides
- C 5' untranslated region
- D coding segment
- E modified guanine nucleotide
13 During RNA processing a(n) _____ is added to the 3' end of the RNA.
- A 3' untranslated region
- B a long string of adenine nucleotides
- C 5' untranslated region
- D coding segment
- E modified guanine nucleotide
14 Spliceosomes are composed of _____.
- A snRNPs and other proteins
- B polymerases and ligases
- C introns and exons
- D the RNA transcript and protein
- E snRNPs and snurps
15 The RNA segments joined to one another by spliceosomes are _____.
- A caps
- Bexons
- CsnRNPs
- Dtails
- Eintrons
16 Translation occurs in the _____.
- Acytoplasm
- Blysosome
- Cnucleus
- DGolgi apparatus
- Enucleoplasm
17 Polypeptides are assembled from _____.
- A hexoses
- B glycerol
- Cnucleotides
- D proteins
- E amino acids
18 RNA processing converts the RNA transcript into _____.
- A a protein
- B DNA
- C a eukaryotic cell
- D mRNA
- E a polypeptide
19 The tRNA anticodon, GAC, is complementary to the mRNA codon with the sequence _____.
- A CAG
- BCTG
- CGAC
- DCUG
- ETCG
20Generally speaking, which of the following mutations would most severely affect the protein coded for by a gene?
- A a base substitution at the beginning of the gene
- B a base substitution at the end of the gene
- C a frameshift deletion at the beginning of the gene
- D a frameshift deletion at the end of the gene
Información
- Descripción
- (Mastering Biology Homeworks) Biology Test sobre Transcription and Translation, creado por nicole_mcphaul10 el 15/12/2014.
- Autor
- nicole_mcphaul10
- Idioma
- English
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