Updated: 1/15/2021

Storyboard Text

  • If HELICASE unzips and unwinds a double helix at the replication origin making a replication fork that means...
  • Next is POLYMERASE, which replicates each dna strand by pairing the nitrogen bases, Adenine with Thymine, Guanine with Cytosine. Also know as complementary base pairing.
  • gggggggg
  • Double helix
  • Jeez Louise, You know your stuff. But did you know the dna polymerase adds nucleotides to the leading strand. Any ways what you do you do?
  • No, I did not know that. Another fun fact is that when the DNA strands are antiparallel, Polymerase cant add nucleotides to the lagging strand since the can only synthesize when the strand is going from 5' to 3' and not 3'5. Im college student studying Biology that why I know, what do you do?
  • Im a part time science teacher, and full time scientistfor OSU. Yes that's correct. I have a question, i cant seem to remember what does primase do
  • Lucky for you I have answer, Primase adds RNA primers, which help polymerase synthesize. Together they can synthesize a lagging strand. Polymerase add nucleotides, and primase adds primers
  • I have a question for you, what is the cell cycle and the S phase?
  • well firstly, the cell cycle is the process cells go through when dividing into two daughter cells. The s phase is the phase of the cell cycle where dna is replicated. there is also the prophase, prometaphase, metaphase, anaphase, and telophase
  • I learned this today, A dna strand can break into 2. Half parent and half new dna. It is called semi conservative.
  • Have you learned about the structure of a dna strand yet.
  • Nice, that is correct. A hydrogen bond are between two nitrogen bases, covalent bond is between the backbone.
  • Yeah a little, I know that I deoxyribose is the backbone of the dna strand. There is also nitrogen bases. Between those bases there are three types of bond. Ionic, Hydrogen, and covalent.