PLZ HELP!! BIOLOGY (9TH GRADE) THNKS :]?

Nucleotides are guanine, thymine, adenine and cystoning. These are the genetic make up found in dna. They make up a sequence that formulate out genetic make up, which decides things like eye colour hair colour etc. Rna copies this sequence from the dna and brings it into the ribosomes where it then makes the proteins needed. The sequence of the nucleotides are like the instructions on how to make the different proteins