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Definition
Keyword
Shape of DNA molecule
Double helix
Molecule that when repeated makes up a polymer
Monomer
Molecule consisting of a five-carbon sugar, a phosphate group and a nitrogenous base
Nucleotide
Large molecule containing many nucleotides
Polynucleotide
Enzyme that catalyses formation of DNA
DNA Polymerase
Enzyme that catalyses the breaking of hydrogen bonds between the nitrogenous pairs of bases in a DNA molecule
Helicase
Definition
Keyword
How DNA replicates, resulting in two new molecules, each of which contains one old strand and one new strand
Semi-conservative replication
A length of DNA that codes for a polypeptide or for the length of RNA
Gene
A polymer made of many amino acid units joined together by peptide bonds
Polypeptide
A large polypeptide of 100 or more amino acids
Protein
The process of making messenger RNA from a DNA template
Transcription
Formation of a protein, at ribosomes, by assembling amino acids into a particular sequence according to the coded instructions carried from DNA to the ribosome by mRNA