DNA REPLICATION
_____________________________________________________________________ line A
G
_____________________________________________________________________ line B
Lines A and B above were once a double stranded helix, but have been split apart in preparation for DNA
replication by helicase.
1) Using line A, create a sequence of DNA nucleotides. It can be any combination you choose.
Write this sequence on line A so that one nucleotide is positioned below each line; the first has
been done for you.
2) Using line A that you just created, fill in the complementary sequence that would be expected to
be seen on line B. REMEMBER, lines A and B were initially connected to form a double helix.
3) Answer the following questions pertaining to line A.
a. What would be the sequence of nucleotides that would be added to line A so that this
half (line A) of the original parent DNA strand could be replicated into a new daughter
DNA strand that contains 50% of the original parent? Write your answer on the line
below.
___________________________________________________________________
b. What is the name of the enzyme responsible for this process?
i. RNA ligase
ii. RNA polymerase iii. DNA ligase iv. DNA polymerase
4) Answer the same question in 3a above, but in reference to line B.
__________________________________________________________________________
5) Where in the cell is this occurring?
6) When (specifically) in the cell cycle is this occurring?