BIO 1130 Lecture Notes - Lecture 4: Francis Crick, Bravais Lattice, Hydrogen Bond

• School: University of Ottawa
• Department: Biology
• Course: BIO 1130
• Professor: Jon Houseman

Document Summary

Tendency of dissimilar particles to cling to one another. Earliest division of precambrian time (3800 ma 2500 ma) Molecule that can combine with others to form polymer. Four electrons available to form covalent chemical bonds. Birds appear, flowers begin to be pollinated by insects. Information cannot be transferred back from protein to protein/ nucleic acid. Rna can make more rna, can also make dna. Originating from simpler inorganic molecules through chemical reactions in the oceans during early history of the earth. Action of molecules sticking together, being mutually attractive. Open structure with each water molecule hydrogen bonded to four other molecules. Living things become more complex as it goes from cellular level to organ system. Concept that whole is greater than composition of its parts . The longest division of geologic time, containing two or more eras. An era is a period of time marked by distinctive character, events, etc. Organism/ cell possessing defined nucleus with nuclear membrane.