WorksheetsHonors Protein Synthesis
Total questions: 20
Worksheet time: 10mins
In transcription, ________.
RNA polymerase links nucleotides to form mRNA
both DNA strands are used as the templates
a polypeptide is formed
the promoter region acts as an initial binding site for mRNA
In eukaryotic cells, a terminator in mRNA synthesis is ________.
a stop codon
. a specific nucleotide sequence in mRNA that signals the RNA polymerase to stop
a specific nucleotide sequence in DNA that signals the RNA polymerase to stop
an enzyme whose specific function is to stop transcription
In eukaryotic cells, the RNA is processed before it leaves the nucleus. This processing ________.
includes the removal of exons before the addition of a cap and tail, which assist in binding of the ribosome
b. includes the addition of a cap and tail, which protect the mRNA molecule from enzymatic attack, and the removal of introns
includes the addition of a cap and tail, which help in exporting the mRNA molecule from the nucleus, and the removal of exons
includes the removal of introns before a cap and tail are added to the RNA molecule, forming the start site for translation once attached to the ribosome
If protein production were an assembly line, a ribosome would be ________.
the machines that move pieces to their appropriate locations
the foreman who barks out instructions
a loose piece that needs to be put together
the worker who puts all of the pieces together
During the process of translation, ________ matches an mRNA codon with the proper amino acid.
DNA polymerase
messenger RNA
a ribosome
A eukaryotic cell has a nuclear envelope that allows tRNA molecules, but not mRNA molecules, to leave the nucleus. Which of the following processes will not be able to take place in this cell?
RNA being made from DNA
DNA replication
tRNAs binding to codons
tRNAs binding to amino acids
Below are three statements. Which of the following choices properly matches the statements with the correct biological processes? I. This occurs in the nucleus of eukaryotic cells with DNA polymerase. II. Transfer RNAs bind amino acids in the cytoplasm. III. An RNA polymerase enzyme is required.
I: replication; II: transcription; III: replication
I: transcription; II: translation; III: replication
I: transcription; II: translation; III: translation
I: replication; II: translation; III: transcription
A gene made of ________ is transcribed into ________ and then translated to form a ________.
RNA ... DNA ... protein
protein ... RNA ... DNA
DNA ... RNA ... protein
DNA ... protein ... RNA
The type of mutation represented below is a(n) ________. The big red fly had one eye (wild type) The fbi gre dif yha don eey (mutant)
addition of a codon
frameshift
deletion
single base substitution
Any change in the nucleotide sequence of DNA is called a ________.
base substitution
frameshift
There is not a correct answer.
Which molecule carries the genetic information from the nucleus to the cytoplasm during protein synthesis?
mRNA
rRNA
cRNA
DNA
Which type of RNA is responsible for bringing amino acids to the ribosome during protein synthesis?
mRNA
tRNA
rRNA
snRNA
During which stage of protein synthesis is the genetic code decoded to form a polypeptide chain?
Translation
Transcription
Replication
Translocation
Which of the following is NOT a component of a tRNA molecule?
Amino Acid
Anticodon
Ribose
Peptide Bond
Where does translation occur in eukaryotic cells?
Cytoplasm
Nucleus
Mitochondria
Endoplasmic Reticulum
Which of the following is a start codon in the genetic code?
UAA
AUG
UAG
UGA
The process of protein synthesis involves the formation of:
Peptide Bonds
Hydrogen Bonds
Ionic Bonds
Covalent Bonds
What is the primary function of protein synthesis in cells?
Energy Production
Cell Division
Gene Expression
Waste Elimination
What is the role of ribosomal RNA (rRNA) in protein synthesis?
Carries the genetic code from DNA to the ribosome
Brings amino acids to the ribosome
Forms the core structure of the ribosome and catalyzes protein synthesis
Modifies mRNA after transcription
Which process is responsible for copying a DNA sequence into an RNA sequence?
Translation
Transcription
Replication
Reverse transcription
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