DNA and RNA definitions

biology

codon

a sequence of three bases that represents a code for an amino acid

the genetic code

a sequence of three bases that represents a code for an amino acid

a gene

a section of DNA that has a code for the production of a protein

complimentary bases

when bases match eachother

a nucleotide

consists of phosphate group, sugar and a nitrogen base

a polynucleotide

many nucleotides joined together

anticodon

a sequence of three bases on the tRNA that complement bases on the mRNA

DNA profilling

makes a pattern of unique bands of the DNA of a person, which can be used to distinguish that DNA from other DNA

restriction enzymes

used to cut DNA into different fragments

genetic screening

the testing of DNA for the presence or absence of an altered gene

protein synthesis

the making of a protein

translation

making of a protein using the mRNA code

transcription

making of mRNA from DNA

purines

double ringed molecules : adenine and guanine

pyrimidines

single ringed molecules : thymine and cytosine

non conding DNA/ junk DNA

they do not have the genetic intruction for the formation of a protein

coding DNA

has the genetic instruction to make a protein