DNA Repair and technology

Quiz
•
Biology
•
12th Grade
•
Medium
Standards-aligned
Cynthia Silva
Used 3+ times
FREE Resource
26 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What role do mismatch repair proteins play in the mismatch repair process?
They add new bases to the DNA strand.
They detect the base and remove it from the newly synthesized strand.
They replicate the DNA strand.
They bind the DNA strands together after repair.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What happens after the mismatch repair proteins remove the incorrectly added base?
The DNA replicates again.
The gap is filled with the correctly paired base.
The DNA helix unwinds.
Additional proteins bind to the DNA.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the primary function of nucleotide excision in DNA repair?
To add new nucleotides randomly along the DNA strand
To repair double-strand breaks in the DNA
To repair thymine dimers caused by UV exposure
To replicate DNA during cell division
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which enzyme is responsible for cutting the DNA on each side of a thymine dimer during nucleotide excision repair?
DNA Ligase
DNA Polymerase
Nuclease
Helicase
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What role does DNA Polymerase play in nucleotide excision repair?
It cuts the DNA at the site of damage
It synthesizes new DNA using the undamaged strand as a template
It seals the DNA backbone after repair
It recognizes the damaged sites on the DNA
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the final step in the nucleotide excision repair process?
Recognition of the thymine dimer
Synthesis of new DNA
Excision of the thymine dimer
Formation of a phosphodiester bond between new and old DNA
Tags
NGSS.HS-LS3-2
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the consequence of a silent mutation in DNA replication?
It changes the amino acid sequence of the protein.
It results in a premature stop codon.
It has no effect on the protein sequence.
It causes a frameshift mutation.
Tags
NGSS.HS-LS3-2
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