In what direction does DNA replication occur? 3'-5'? Or 5'-3'?
5' -3'
100
Where in the Cell Cycle does DNA Replication occur?
Synthesis
100
What does the Primase do?
It is a RNA primer that shows the DNA Polymerase where to go.
100
Why do the Okazaki fragments Occur?
The lagging Strand misses fragments when the Primase is showing the DNA Polymerase where to go Since the strand doesn’t move forward like the leading strand.
100
What is DNA replication?
Process of producing two identical replicas from one original DNA molecule.
200
Which Nitrogen bases pair up with each other? Adenine, Guanine, Cytosine, and Thymine.
Adenine and Thymine
Guanine and Cytosine
200
What occurs first in the process of DNA replication?
The helicase breaks up hydrogen bonds.
200
Is this describing the Leading strand or Lagging strand: 3’-5’, Okazaki fragments form, and needs the Primase more than once.
Lagging
200
Do the Okazaki Fragments occur on the leading or lagging strand?
Lagging
200
How many new strands are there in the end?
2
300
What does the structure of a nucleotide consist of?
Sugar, nitrogenous base, and phosphate.
300
What enzyme is essential for joining the okazaki fragments?
DNA Ligase (and DNA Polymerase)
300
Is this describing the Leading or Lagging strand: 5’-3’, Only needs the RNA primase once and then the DNA polymerase finishes the strand without extra help needing to know where to go, No Okazaki Fragments occur
Leading
300
What is the "Back Bone"
Sugar phosephate
300
Enzymes involved in DNA replication
DNA Primase
RNA Polymerase
Helicase
DNA ligase
400
What are the bonds that holds the backbone together?
Covalent bonds between sugar phosphates.
Nitrogenous Bases are held together by hydrogen bonds.
400
What does the Helicase do?
Separate the Nitrogen bases from one another.
400
What two enzymes are in, both, the lagging and leading strand?
RNA primase and DNA polymerase
400
What does 3' and 5' mean?
If it is a 5 carbon or 3 carbon sugar
400
What are the 2 strands that make up DNA called
A double Helix
500
What direction does the lagging and leading strand move?
Anti-Parallel
500
What comes into play first in DNA Replication?:
DNA polymerase or Ligase
DNA Polymerase.
Ligase comes last.
500
What is RNA primase’ main function?
It makes RNA primer
500
When do the binding proteins come into play?
Right after the helicase separates the Nitrogen bases