Vocab
This enzyme is responsible for unzipping and separating the two strands of a DNA molecule
What is DNA helicase?
DNA replication requires access to ___________ of the DNA
What is 'all?'
Genetic code can only be 'read' in this direction
What is 3' --> 5'?
What short RNA sequence is laid down at the start of DNA replication to initiate the process?
What is the RNA primer?
This enzyme is responsible for laying down short segments of RNA along the DNA template strands
What is primase?
These are used to chemically signal DNA polymerase to start adding bases to DNA
What are RNA primers or Primase
DNA replication occurs during this phase of the cell life cycle
What is 's phase?'
What is the role of the original DNA strand during replication?
What is serving as a template for the new strand?
This enzyme is responsible for adding new DNA base pairs and creating new strands of DNA
What is DNA polymerase?
Why is dna called semi conservative
Each new DNA molecule consists of one original (parental) strand and one newly synthesized strand.
What strand is copied in short fragments during DNA replication?
What is the lagging strand
What specific site does helicase target to begin unzipping the DNA?
What is the origin of replication?
This enzyme is responsible for scanning both new strands of DNA and sealing all the fragments of DNA together
What is ligase?
These are short fragments of DNA synthesized in the opposite direction of unwinding
What are Okazaki fragments?
What is the name of the strand that is copied continuously during DNA replication
What is the leading strand?
What type of bonds hold the two strands of DNA together?
What are hydrogen bonds?
These are the four major enzymes used during DNA replication
What are 1) DNA Helicase, 2) Primase, 3) DNA Polymerase, 4) DNA Ligase
Hundreds of these structures open up along the DNA during replication
What are replication forks
What are the building blocks that DNA polymerase uses to form a new DNA strand?
"What are nucleotides?
Why is the leading strand copied continuously while the lagging strand is not?
What is because the leading strand runs in the 3' to 5' direction, allowing DNA polymerase to add nucleotides continuously?