
IB HL DNA replication
Authored by Victoria Jane Young Young
Biology
11th - 12th Grade
Used 52+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the function of DNA helicase?
It breaks hydrogen bonds
It forms hydrogen bonds
It breaks phosphodiester bonds
It forms phosphodiester bonds
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which enzyme relieves pressure on the DNA strand caused by uncoiling?
DNA helicase
DNA gyrase
Single Stranded Binding Proteins
DNA primase
3.
FILL IN THE BLANKS QUESTION
1 min • 1 pt
Name the proteins that prevent separated DNA strands from re-coiling.
(a)
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the purpose of DNA primase?
Synthesizes a short RNA sequence
Synthesizes a short DNA sequence
Replaces the RNA primer with DNA
Replaces the DNA primer with RNA
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which describes the function of DNA polymerase III?
Replaces an RNA primer with DNA
Seals breaks in the sugar-phosphate backbone
Adds DNA nucleotides to the 3' end of an existing chain
Adds DNA nucleotides to the 5' end of an existing chain
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
On which strand are Okazaki fragments created?
Leading
Lagging
7.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
What is the cause of Okazaki fragments?
Discontinuous replication
Continuous replication
Replication in the same direction as helicase action
Replication in the opposite direction to helicase action
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