
DNA & Protein Synthesis
Quiz
•
Science
•
9th Grade
•
Practice Problem
•
Medium
Standards-aligned
Kimberly Healy
Used 3+ times
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17 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the first step of DNA synthesis?
Translation
Transcription
Replication
Mutation
Answer explanation
The first step of DNA synthesis is Replication, where the DNA molecule is copied to produce two identical DNA molecules.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which enzyme is responsible for adding nucleotides to the growing DNA strand during DNA replication?
DNA polymerase
Helicase
Ligase
RNA polymerase
Answer explanation
DNA polymerase is responsible for adding nucleotides to the growing DNA strand during DNA replication.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
During protein synthesis, what is the process called when mRNA is decoded to produce a specific polypeptide?
Transcription
Translation
Replication
Mutation
Answer explanation
During protein synthesis, the process of decoding mRNA to produce a specific polypeptide is called Translation, making it the correct choice.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which type of RNA carries amino acids to the ribosome?
mRNA
rRNA
tRNA
snRNA
Answer explanation
tRNA carries amino acids to the ribosome, making it the correct choice among the given options.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a mutation that involves the insertion or deletion of a nucleotide in the DNA sequence?
Point mutation
Frameshift mutation
Silent mutation
Missense mutation
Answer explanation
A frameshift mutation involves the insertion or deletion of a nucleotide in the DNA sequence, causing a shift in the reading frame. This can lead to significant changes in the resulting protein.
Tags
NGSS.HS-LS3-2
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is NOT a type of DNA mutation?
Substitution
Insertion
Duplication
Translation
Answer explanation
The correct choice is 'Translation' because it is not a type of DNA mutation. Substitution, Insertion, and Duplication are all types of DNA mutations.
Tags
NGSS.HS-LS3-2
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What component of the cell's machinery performs the synthesis of a new DNA strand?
Ribosome
Golgi apparatus
DNA polymerase
Mitochondria
Answer explanation
DNA polymerase is the component of the cell's machinery that performs the synthesis of a new DNA strand.
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