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Lab: Building Proteins from RNA Answers

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1
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Which nucleic acid provides the master code for protein synthesis?

A
DNA
B
RNA
C
mRNA
D
tRNA
2
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During which process is mRNA converted into a sequence of amino acids for protein production?

A
transcription
B
translation
C
translocation
D
mRNA synthesis
3

Which describes a promoter?

A
the first part of an operon that regulates where, when, and to what level a gene is expressed
B
the part of an operon that, if attached by a repressor protein, suppresses the expression of a gene
C
a cluster of genes that are expressed or repressed as a group
D
an enzyme that helps DNA unzip prior to transcription
4

Which is the purpose of transfer RNA?

A
to code for protein synthesis
B
to carry the synthesized genetic information from the nucleus to the ribosomes
C
to synthesize proteins from RNA
D
to bring amino acids to the ribosomes to be assembled into proteins
5

The study of Escherichia coli (E. coli) led researchers to new experimental designs for studying operons. Which experimental design did the scientists use?

A
Used a microscope to observe cell division to determine the structure of operons.
B
Tested the response of E. coli to a variety of chemicals to determine the number of operons that are present.
C
Inserted the operons from one organism into another to determine the mechanism of operon expression.
D
Read the genome sequence to determine the quantity and organization of operons.
6

Which summary below correctly describes what occurs during transcription?

A
A DNA template is used to create an mRNA strand.
B
An mRNA template is used to create a DNA strand.
C
A DNA template is used to create a ribosome.
D
An mRNA template is used to create a tRNA strand.
7

Which molecule brings amino acids to the ribosomes to be assembled into proteins?

A
tRNA
B
mRNA
C
peptide
D
codon
8

Which describes the function of a peptide bond?'

A
It connects amino acids.
B
It connects ribosomes.
C
It connects tRNA.
D
It connects anticodons.
9

Which nucleic acid moves the code for protein synthesis from the nucleus to the ribosomes?

A
dRNA
B
tRNA
C
rRNA
D
mRNA
10

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