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
answer
d.transcription
question
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
answer
e.translation
question
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
answer
a. RNA processing
question
Polypeptides are assembled from _____.
a.hexoses
b.glycerol
c.nucleotides
d.proteins
e.amino acids
answer
e.amino acids
question
RNA processing converts the RNA transcript into _____.
a protein
DNA
a eukaryotic cell
mRNA
a polypeptide
answer
mRNA
question
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
answer
modified guanine nucleotide
question
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
answer
a long string of adenine nucleotides
question
Spliceosomes are composed of
snRNPs and other proteins
polymerases and ligases
introns and exons
the RNA transcript and protein
snRNPs and snurps
answer
snRNPs and other proteins
question
The RNA segments joined to one another by spliceosomes are _____.
caps
exons
snRNPs
tails
introns
answer
exons
question
Translation occurs in the _____.
cytoplasm
lysosome
nucleus
Golgi apparatus
nucleoplasm
answer
cytoplasm
question
The direction of synthesis of an RNA transcript is _____.
answer
5' β> 3'
question
Which of these correctly illustrates the pairing of DNA and RNA nucleotides?
GTTACG
CAATCG
GTTACG
CAAUGC
GTTACG
GTTACG
GTTACG
ACCGTA
GTTACG
UAACAU
answer
GTTACG
CAAUGC
question
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.
answer
complementary to the corresponding mRNA codon.
question
What is the process called that converts the genetic information stored in DNA to an RNA copy?
Translation
Transcription
Replication
Translocation
answer
Transcription
question
DNA does not store the information to synthesize which of the following?
Proteins
Organelles
DNA
Messenger RNA
answer
Organelles
question
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
answer
A site in DNA that recruits the RNA Polymerase
question
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.
answer
The promoter is a nontranscribed region of a gene.
question
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
answer
Base pairing between the DNA template strand and the RNA nucleotides
question
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
answer
Complementary
question
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.
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