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WorksheetsDNA Replication
Total questions: 15
Worksheet time: 44mins
Which of the following units are repeatedly joined together to form a strand of DNA?
amino acids
nucleotides
fatty acids
polysaccharides
Which enzyme is responsible for 'gluing' Okazaki fragments together?
DNA polymerase
Primase
Ligase
Helicase
Which is the order of replication?
3, 2, 1, 4
2, 1, 4, 3
2, 3, 1, 4
3, 4, 1, 2
The enzyme that attaches the complimentary base pairs to the original strand of DNA is called...
helicase
DNA polymerase
replicase
synthase
The enzyme that 'unzips' the DNA to prepare for replication by breaking the hydrogen bonds is....
helicase
replicase
polymerase
synthase
Nitrogenous bases are joined by which type of bond?
polar bonds
ionic bonds
covalent bonds
hydrogen bonds
Why do we get Okazaki fragments?
Because DNA polymerase can only be built in a 5' - 3' direction
Because DNA polymerase can only be built in a 3' - 5' direction
Because is it more efficient to build DNA in fragments
Because the enzyme primase is limited
Which enzyme is responsible for 'marking the spot' to start DNA replication?
Helicase
Primase
Ligase
DNA polymerase
3' and 5' refer to...
How effectively the helicase works
What direction the nucleotides are pointing
Where the RNA primer attaches
Okazaki's famous experiment
What which enzyme is represented by B?
Ligase
Primase
DNA Polymerase
Helicase
What which enzyme is represented by A?
Ligase
Primase
DNA Polymerase
Helicase
Which is the LAGGING strand D or E?
D
E
Which is the LEADING strand D or C?
D
C
In which direction does DNA polymerase build the new DNA strand?
5' - 3'
3' - 5'
right to left
left to right
it depends if it is the lagging or leading strand
Which sequence of DNA bases would pair with this partial strand
CAT TCA CTG
GTU UGT GUC
GUA ACU GAC
GTA AGT GAC
GUA UCA CUG
