The+Purpose+of+DNA+and+How+It+Replicates

The purpose of DNA is that it makes up a persons genetic material and it also makes proteins which are needed in the cells. Things like hair color, type of skin, and eye color is genetic material. DNA is passed down from a adult to thier blood related child, which does not count if the child is adopted. The way proteins are made is by transcription and translation. Transcription is when the two DNA stands separate and nucleotides ( the three groups that mostley make up the DNA structure) add to the strands. Then the nucleotides come together to form RNA. The RNA goes out of the nucleus into the surrounding liquid called the cytoplasm. After that the tRNA which is a molecule containing an amino acid goes to there fitted spot on the RNA and transfer the amino acids to form on long chain which now is called a protein.
 * __The Purpose of DNA:__**

__**DNA Structure:**__ A DNA molecule is in the shape of a double helix(two strands that are twisted together.) DNA is made up of nucleotides. These are subunits that each contain a phosphate group, a five carbon sugar molecule(deoxyribose) and one of the four bases. The four bases are Adenine, Guanine, Thymine, and Cytosine. These bases can be abbreviated as A, G, T, and C. Adenine only bonds with Thymine and Guanine only bonds with Cytosine. A base can either be double-ringed or single-ringed. Double are called Purines, while single are called Pyrimidnes. Hydrogen bonds are bonds only between the bases that hold them together. Colvalent bonds are bonds that hold the rest of the double helix together. Between the bases A and T there are two hydrogen bonds while G and C have three hydrogen bonds. If you look at the images listed below you will see a visual view of the DNA structure.

//__(DNA and Genes)__// //__(Paszek, Ewa)__// DNA replicates(copies) by the DNA helicase (breaks the hydrogen bonds) undoing the double helix while new bases come and replace the old ones. The DNA polymerases winds up the two new DNA helix's. Then you have two DNA molecules.This occurs because when a cell spilts into two cells both cells need DNA so that is why the DNA replicates.
 * __How DNA Replicates:__**

//__(__////__Ibrahim, Mhamed)__//