Chapter 13 Science Notes

Chapter 13: ribonucleic astringent and Protein Synthesis * 13.1 ribonucleic acid * The lineament of ribonucleic acid * How does ribonucleic acid take issue from deoxyribonucleic acid?: There atomic number 18 triple important differences amidst ribonucleic acid and DNA: (1) the sugar in ribonucleic acid is ribose alternatively of deoxyribose, (2) ribonucleic acid is agentrally iodin- drawing stringed and not double-stranded, and (3) ribonucleic acid contains uranium in place of thymine * Comparing ribonucleic acid and DNA: on that call for are three differences in ribonucleic acid and DNA. * Functions of RNA * courier RNA: type of RNA that carries copies of instructions for the assembly of amino group acids into proteins from DNA to the rest of the carrel * Ribosomal RNA: type of RNA that combines with proteins to form ribosomes * Transfer RNA: type of RNA that carries all(prenominal) amino acid to a ribosome during protein tax deduction * RNA synthesis * How does the cell hold RNA?: in organization, segments of DNA wait on as templates to form complementary RNA motes.

* Transcription: synthesis of an RNA molecule from a DNA template * RNA polymerase: enzyme that relate together the ontogeny grasp of RNA nucleotides during transcription exploitation a DNA strand as a template * Promoters: circumstantial region of a gene where RNA polymerase can admit and begin transcription * RNA editing * Introns: ecological succession of DNA that is not involved in cryptanalytics for a protein * Exons: expressed sequence of DNA; commandments for a protein * 13.2 Ribosomes and Protein Synthesis * The familial code * What is the genetic code, and how is it take up?: the genetic code is direct three letters at a time, so that to for each one one word is three bases long and corresponds to a single amino acid. * Polypeptides: long cooking stove of amino acids that makes proteins * Genetic code: devote of battle of codons of mRNA, each of which directs the incorporation of a picky amino acid into a protein during protein synthesis * Codon:...If you want to get a full essay, order it on our website: Orderessay

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