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WorksheetsDNA Replication, Protein Synthesis, and Mutations Review
Total questions: 10
Worksheet time: 5mins
What is the process by which DNA makes an exact copy of itself?
Protein synthesis
RNA replication
DNA replication
Cell division
During which phase of the cell cycle does DNA replication occur?
G1 phase
M phase
G2 phase
S phase
What enzyme is responsible for unwinding the DNA double helix during replication?
RNA polymerase
DNA helicase
DNA polymerase
Ligase
What are the three types of RNA involved in protein synthesis?
rRNA
dRNA
mRNA
tRNA
What is the first step of protein synthesis?
Transcription
Replication
Translation
Mitosis
What is the term for a change in the DNA sequence that affects genetic information?
Genetic drift
Variation
Mutation
Chromosomal rearrangement
What is the difference between a point mutation and a frameshift mutation?
The main difference is that a point mutation involves a single nucleotide change, whereas a frameshift mutation involves the insertion or deletion of nucleotides.
Frameshift mutation occurs in somatic cells, whereas point mutation occurs in germ cells.
Point mutation involves the deletion of nucleotides, while frameshift mutation involves the substitution of nucleotides.
Point mutation always results in a frameshift mutation.
What is the process by which the genetic information in DNA is used to build proteins?
DNA replication
Genetic transcription
Protein synthesis
Cell division
What is the role of tRNA in translation?
tRNA carries specific amino acids to the ribosome and pairs them with the complementary codon on the mRNA during translation.
tRNA is responsible for protein folding during translation
tRNA acts as a catalyst in translation process
tRNA helps in DNA replication instead of translation
How many nucleotides make up a codon in the genetic code?
Ten
Three
Five
One
