BIOL 1113 Lecture Notes - Lecture 15: Silent Mutation, Dna Replication, Cell Nucleus
12 Dec 2017
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What are essential molecular building blocks of all living organisms? (i. e. , what do you need in your diet: proteins what we build, carbohydrates, lipids, nucleic acids, marconutrients. Which molecule in chromosomes: dna made up of nitrogen bases paired with a sugar and a phosphate. What do genes do: program for proteins. Proteins that modify proteins adjacent to them. Change molecular structure, an infection that can spread into the body. Genetic code: gene works based on genetic code, codons = 3 nucleotides tells ribosome what amino acid and stitches them together. Turns out that same genetic code is in all replicating organisms: silent mutation aren"t expressed in phenotype, each codon codes for specific nucleic acid, amino acids stitch together to form proteins. If we eat meat, we get all amino acids. Cell cycle: growth 1 can take up most of its life. In diploid organisms, replicates autosomal (vs. germ line) cells.
