Vocabulary Review Nucleic Acids 1 Enzyme that unwinds & separates the DNA strands Helicase 2 Double helix shape DNA 3 Base with a double carbon-nitrogen ring Purine 4 Change in a DNA nucleotide sequence Mutation 5 Copies DNA and carries the code to the cytoplasm mRNA 6 AUG Start Codon 7 Globular Shaped RNA making up ribosomes rRNA 8 Region of DNA that marks the start of a gene in eukaryotes Promoter 9 Process of copying DNA in order to make proteins Transcription 10 Y-shaped point where helicase separates the two chains of DNA Replication Fork 11 Base found on DNA, but NOT found on RNA Thymine 12 Base with a double carbon-nitrogen ring Purine 13 Sugar found in RNA nucleotides Ribose 14 Change in a DNA nucleotide sequence Mutation 15 Cytosine only pairs with guanine Base-Pairing Rule 16 Base found on RNA ONLY URACIL 17 Process of copying DNA in order to make proteins Transcription 18 Globular Shaped RNA making up ribosomes rRNA 19 Process of reading mRNA and assembling amino acids to make proteins TRANSLATION 20 Y-shaped point where helicase separates the two chains of DNA Replication Fork 21 Bases with a single carbon-nitrogen ring Pyrimidine 22 Base found on RNA ONLY URACIL 23 Enzyme that unwinds & separates the DNA strands Helicase 24 Sugar found in RNA nucleotides Ribose 25 Double helix shape DNA 26 RNA that carries amino acids to the ribosomes for assembly into polypeptides or proteins tRNA 27 Base with a double carbon-nitrogen ring Purine 28 Three mRNA nucleotides in a row that code for an amino acid Codon 29 Region of DNA that marks the start of a gene in eukaryotes Promoter 30 Base found on DNA, but NOT found on RNA Thymine 31 Enzyme that helps replicate DNA by adding free nucleotides to the template strand DNA Polymerase 32 Process of making identical copies of DNA Replication 33 Process of reading mRNA and assembling amino acids to make proteins TRANSLATION 34 AUG Start Codon 35 Copies DNA and carries the code to the cytoplasm mRNA 36 Cytosine only pairs with guanine Base-Pairing Rule 37 RNA that carries amino acids to the ribosomes for assembly into polypeptides or proteins tRNA 38 39