Biology DNA replication project
Updated: 1/15/2021
Biology DNA replication project

Storyboard Text

  • I hope this information helps people understand more about DNA...
  • Hello, I am the conductor of human body. Today is a very important day. DNA replication is happening. Let me explain the process to you!
  • This is how DNA looks like. It is very small so people cannot see by eyes but I can. That is the advantage of being a conductor. DNA is a double helix consisting two strands that is twisted together.
  • Firstly, DNA replication is the process of making a copy of itself during cell division. Cell division takes place in the cell cycle and DNA is replicated in a S phase.
  • DNA is made of long chains of nucleotides. A nucleotide has three parts which are deoxyribose, phosphate, and nitrogen bases. Deoxyribose and phosphate are bonded covalently. The nucleotide differs only in their nitrogen bases. There is thymine, adenine, cytosine, and guanine. Thymine will always pair with adenine, cytosine will always pair with guanine which is a complementary base pairing. The bonding of the nitrogen bases is called the hydrogen bond. Let's move on to the main point!
  • DNA is unzipped and unwinded by an enzyme, helicase. After the DNA is unzipped replication fork breaks the hydrogen bond and hold 2 DNA strands.
  • After breaking the hydrogen bond, DNA polymerase starts to work. DNA polymerase is an enzyme that works in pairs to create two identical DNA strands. Each strands are copied and create. There would be two old stands and two new strands existing.
  • After the replication for DNA, we will find two DNA that is identical to the first DNA. DNA is an semi conservative process because one strand is old and the other is new.