BIOL 202 Study Guide - Comprehensive Final Exam Guide - Messenger Rna, Gene, Dna
20 Nov 2018
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Lecture 1 - law of segregation, single gene inheritance patterns. Genes are in chromosomes which are in each cell. Each cell nucleus contains an identical complement of chromosomes in 2 genomes (copies) > we are a diploid organism. Genes organized in chromosomes (single long dna molecules) Genes are the functional regions on the dna molecule (a double helix) Info replicates > passed from cell to cell during growth + from parent to progeny. Info system not entirely error-proof - this allows change hence, creates the diversity. Info translated into a blueprint for development (rna, protein) [2nd image above] info containing dna in nucleus transcribed > primary rna transcript rna processes > mature mrna > transport to cytoplasm > ribosomes translate mrna > info in mrna translated into aa chain. Dna is the warehouse, rna is the intermediate step, protein is the molecule that actually does the work.
