What is DNA?
DNA is short for a long word I cannot pronounce which is Deoxyribonucleic acid. Your DNA carries your genetic information based of your parents genes. Your DNA resembles a twisted ladder like what we made in our lab below is a photo.
The marshmallows on the tooth picks represent adenine, thymine, cytosine and finally guanine. The twizzlers represent the phosphate backbone that connect to the adenine, thymine, cytosine and guanine.
What does DNA do?
All species need DNA to reproduce to keep that species alive and healthy. DNA can create mutations by miss matching the nucleotides.
How does DNA copy itself?
The DNA develops into looking like a twisted ladder. The DNA strands are separated kind of like it unzipping, like the photo below.
Then the piece of RNA is pretty much a new starting point for a new strand of DNA then it copies the first strand of DNA.