WorksheetsDNA relication
Total questions: 10
Worksheet time: 5mins
Which enzyme is responsible for adding nucleotides?
Ligase
Helicase
DNA polymerase I
DNA polymerase III
In what phase of the cell cycle does DNA replication take place?
G1 phase
G2 phase
S phase
M phase
The enzyme that break down the hydrogen bond of DNA double helix to prepare for replication is _______________.
Primase
Ligase
Topoisomerase
Helicase
The enzyme that elongates chromosomes by adding TTAGGG sequences to the end of existing chromosomes is
Telomerase
Amylase
Helicase
Polymerase
The enzyme that creates a short RNA oligonucleotide at initiation sites where replication is to be carried out is called
Ligase
Primase
Gyrase
Helicase
Which of the following is true about DNA polymerase?
It can synthesize DNA in the 5’ to 3’ direction
It can synthesize DNA in the 3’ to 5’ direction
It can synthesize mRNA in the 3’ to 5’ direction
It can synthesize mRNA in the 5’ to 3’ direction
The enzyme used to join bits of DNA is
Primase
Ligase
Polymerase
Helicase
Why is the lagging strand of DNA replicated in short Okazaki Fragment?
Because DNA polymerase can only synthesizein one direction
To help with repair enzyme
For proofreading
Because no replication fork
Which type of cells actively produce telomerase?
cancer cell
somatic cell
Programmed cell death is called
apoptosis
telophase
differentiation
mitosis
