ANT 301 Chapter Notes - Chapter 3: Francis Crick, Transfer Rna, Cell Nucleus
Document Summary
Genetics- the study of how genes work and how traits are passed from one generation to the next. Cells are the fundamental units of life in all organisms. Multicellular forms: plants, insects, birds, and mammals are composed of billions of cells. Proteins- 3 dimensional molecules that serve a wide variety of functions through their ability to bind to other molecules. Nucleus- a structure (organelle) found in all eukaryotic cells. Molecules- structures made up of two or more atoms; molecules can combine with other molecules to form more complex structures. Dna (deoxyribonucleic acid) - the double stranded molecule that contains the genetic code; Rna (ribonucleic acid) - a single-stranded molecule similar in structure to dna; three forms of rna are essential to protein synthesis: messenger rna (mrna), transfer rna (trna), and ribosomal rna (rrna). Cytoplasm- the portion of the cell contained within the cell membrane, excluding the nucleus.
