DNA Replication. Image credit: Getty Images

IB Biology: DNA Replication (HL)

#IBBiology #grade11 #grade12 #DNAReplication Syllabus sections #2.7 and #7.1 #Higherlevel #HL, NGSS #HS-LS1-1 #HS-LS3-1

DNA replication occurs in the:

Rough Endoplasmic Reticulum Golgi Apparatus Nucleus Cytoplasm
Why does DNA replication take place?

To create new cells in growth and repair To fix mutations For human cells to have 92 chromosomes To visualize the DNA
When DNA replication takes place, the new strands are built using the original strands as a:

Ligand Triple Helix Template Division
What role does DNA gyrase play in DNA replication?

Breaks covalent bonds between DNA nucleotides Separates nitrogenous bases by breaking hydrogen bonds Supercoils the DNA in preparation for DNA replication Relieves strain + prevents supercoiling of separated strands
Which enzyme unwinds DNA and how does it do this?

DNA Polymerase III by breaking hydrogen bonds Helicase by breaking hydrogen bonds DNA Polymerase III by breaking covalent bonds Helicase by breaking covalent bonds
… and 12 more awesome questions! Check them out by clicking “Play”.