MCELLBI C61 Chapter Notes - Chapter 4: Pea, Selective Breeding, Radiography
21 Mar 2020
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Chapter 4: genes and the history of molecular biology. Molecular building materials for life: lipids, proteins, carbohydrates, + nucleic acids. The same 20 amino acids are used by all life on earth to construct proteins. Genetic info is stored in nucleic acid molecules (dna + rna) w the same universal code. The storage, readout, and replication of info in living organisms is mystifying. Characteristics of organisms are carried throughout generations in systematic ways. Selective breeding of animals gave rise to domesticated pets, cattle, + horses. Selective breeding of plants produced fruits + vegetables of di erent kinds. Darwin, mid-1800s: all life has developed over lots of time from common origins. The diversity of organisms results from processes of variation + selection. Mendel is known today for his experiments on inheritance in pea plants. Idea: info needed to build an organism is stored in units associated w speci c traits.
