BISC 220Lg Lecture Notes - Lecture 4: Cytosine, Mitochondrion, Pentose
24 Jan 2016
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Bisc 220: nucleic acids, dna is the molecular basis of inheritance. i. ii. iii. Inheritance: the ability to pass on instructions for making proteins from one generation to the next. (protein was the other candidate prior to the 1940s. ) Dna has been identified as a constituent of cells for over a hundred years. Francis crick and james watson elucidated the structure from. Rosalind franklin"s infamous crystallography figure of the double helix: monomers are to macromolecules as nucleic acids are to dna. They are linked by the phosphate groups of pentose sugars. Rna ribonucleic acid: ribose is the pentose sugar. It is single-stranded and is found i. ii. both in the nucleus and the cytoplasm. It is a key part of protein synthesis. iii. Dna deoxyribonucleic acid: deoxyribose is the pentose sugar. It is double-stranded and is found in the nucleus and the mitochondria of the cell: when attached to one another, they are called, polynucleotides.
