BISC207 Chapter Notes - Chapter 3: Poly(A)-Binding Protein, Small Nuclear Rna, Ribosomal Rna

• School: University of Delaware
• Department: Biological Sciences
• Course: BISC207
• Professor: All

Document Summary

Chapter 3: nucleic acids and encoding of biological informaion: 3. 1: major biological funcions of dna. Deoxyribonucleic acid (dna)-macromolecule that is a linear polymer of 4 subunits responsible for geneic encoding. Double helix-2 strands coiled around each other that is structure of dna. Geneic informaion & in form of genes. Transformaion-conversion of one type of dna into another type of molecule (non-virulent cells into virulent cells) Replicaion-copying process where dna is able to specify exact copies of itself. Ribonucleic acid (rna)-type of linear polymer; coding, decoding, regulaion, expression. Transcripion-geneic informaion in a molecule of dna is used as a template to create a molecule of rna. Translaion-molecule of rna is used as a code for sequence of amino acids into a protein: 3. 2: chemical composiion and structure of dna. Nucleoides-contain 5-carbon sugar + a base + one or more phosphate groups. Phosphodiester bonds-link nucleoides together give dna strand polarity (5"-agct-3")