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biology
| Question | Answer |
|---|---|
| enzyme | a protein that acts as a catalsyt to bring specific biochemical reactions on an organism |
| polypeptide | large number of amino acids |
| primary structure | "most basic"- sequence of amino acids that form proteins |
| protein synthesis | info in genes flow into proteins- DNA>RNA>Proteins |
| double helix | two strands of DNA |
| semiconservative model | produces 2 copies with 1 original strand as well as new strand |
| origin of replication | process which replication is initated |
| transcription | DNA to RNA |
| codon | 3 nucleotidea |
| promoter | START or DNA signals for transcription |
| terminator | DNA signals to stop transcription |
| translation | RNA protein |
| anticodon | 3 nucleotides of tRNA correspond to mRNA |
| substitution mutation | mutation where base is exchanged for another |
| insertion mutation | mutation where is an additional base is added to sequence |
| deletion mutation | mutation where base is removed |
| reading frame | triplet codons are read onto ribosomes |
| mutagen | environmental, chemical or radiant cause mutations |
| genetic engineering | manipulating genes |
| recombinant DNA | allows genetic diversification, DNADNA combs with different organisms |
| DNA helicase | unzips, or separates strands |
| DNA polymerase | builds strands |
| RNA polymerase | adds correct base pairs on RNA strand |
| silent mutation | substitution that does not change amino acids |
| missense mutation | substitution when wrong amino acids is coded for |
| nonsense mutation | substitution causes early stop |