No student devices needed. Know more
30 questions
This enzyme is capable of breaking hydrogen bonds found between the bases of DNA
Gyrase
DNA Helicase
DNA Polymerase III
Ligase
This enzyme is used to remove RNA primers and replace them with DNA nucleotides.
Gyrase
DNA Helicase
DNA Polymerase I
Ligase
Which enzyme seals okazaki fragments together on the lagging strand?
DNA polymerase I
Helicase
DNA Polymerase III
Ligase
Which enzyme is responsible for adding DNA nucleotides?
Gyrase
DNA Polymerase III
Ligase
Primase
The separation of the two single strands of DNA creates a ‘Y’ shape called the:
replication bubble
origin of replication
replication fork
replication Y
This enzyme helps helicase unzip DNA by relieving supercoiling tension
Gyrase
Ligase
DNA Primase
DNA Polymerase III
This enzyme synthesizes short RNA sequences
Primers
Primase
DNA Polymerase III
Helicase
Which enzyme is responsible for checking DNA for errors, and fixing it?
DNA Polymerase
DNA Primase
DNA Helicase
RNA Polymerase
Okazaki fragments are found on the _______________ strand
Leading
Lagging
This enzyme ONLY works in one direction which is 5'------> 3'
DNA Polymerase III
DNA Helicase
Gyrase
LIgase
Okazaki fragments are unified into a single continuous strand by the use of this enzyme
DNA Helicase
DNA Ligase
Topoisomerase
Telomerase
Messelson and stahl conducted experiments using the isotopes 14N and 15 N to show DNA replication was semi-conservative. What would they have observed after 1 round of replication if it had been conservative instead?
Only 14N DNA
Only 15N DNA
All DNA half 14N and half 15N
half the DNA with only 14N and half with only 15N
Structure C is
helicase
primase
DNA polymerase III
gyrase
H is the
leading strand
lagging strand
parent strand
none of these
Structure G is
primase
gyrase
ligase
DNA polymerase I
Replication is occurring AWAY FROM the replication fork on strand
I, the leading strand
I, the lagging strand
H, the leading strand
H, the lagging strand
This structure is an Okazaki fragment.
A
D
F
G
Which letter in the picture below depicts the lagging strand in DNA replication?
A
C
B
None of the above
From where does Taq polymerase come?
Bacteria that live in hydrothermal vents/hot springs.
Cambodian humans
Created and synthesized by lab technicians
The CDC
If two double-stranded DNA molecules are used at the beginning of a polymerase chain reaction (PCR) process, how many double-stranded DNA molecules can be obtained after two cycles?
2
4
8
32
Explore all questions with a free account