BIO130H1 Chapter Notes - Chapter 1: Mutation, Circuit Diagram, Tetraodontidae
31
BIO130H1 Full Course Notes
Verified Note
31 documents
Document Summary
10 million, perhaps 100 million living species on earth. All cells store their hereditary info in the same linear chemical code (dna) Dna storage of hereditary information, made of long unbranched paired polymer chains, always made of the same four monomers: a t c g: adenine thymine cytosine guanine. All cells replicate their hereditary information by templated polymerization: Each monomer/nucleotide consists of 2 parts: sugar [deoxyribose] and a base, either atcg. All cells transcribe portions of their hereditary information into the same. Dna must also express information by guiding synthesis of other molecules. Transcription when segments of dna are used as templates for the synthesis of. Leads to the production of two other polymers, rnas and proteins. Translation when rna molecules direct the synthesis of polymers of a different chemical class, the proteins [rna->protein] Basically, dna replication > rna production > protein production. Rna backbone is made of ribose instead of deoxyribose; instead of thymine there"s uracile.
