Structure of DNA
What is the shape of DNA
Double helix
What is DNA ligament job
To connect enzymes
Bonds that hold phosphates and bond that holds nitrogen bases
Hydrogen bond
Covalent Bond
In the first step of DNA replication it must what
Unzip, unwind
What makes up a nucleotide
Phosphate, deoxyribosugar, nitrogen base
What is DNA polymerase job
It removes the primer and fills it with DNA nucleotides
When a nitrogen base matches its other base
Ex. A and T
Complementary base paring
when the DNA polymerase acts on the 3-OH of the existing strand for adding free nucleotides
Joining Okazaki fragments with ligase
The 4 nitrogen base
Adenine, Thymine, Guanine, Cytosine
DNA helicase
An enzyme that unwinds and unzips DNA strands
Replicates by just dividing cells
Prokaryotic DNA replication
Prime direction backward
5 to 3 prime of replication
Which ways does DNA run
5’ to 3’ , 3’ to 5’ ; anitparallel
When DNA helicase is unwinding the DNA it makes what
replication fork
When the nitrogen basses in the middle are broken a part
Breaking hydrogen bonds
What are the 2 types of strands in DNA and how are they different
Leading strand: continuous lagging strand: disconnect
Synthesized laggin strand
Okazaki fragments