BIOLOGY Lecture Notes - Heredity, Plant Physiology, Wilhelm Johannsen
Document Summary
Definition:"" a gene is the basic physical and functional unit of heredity. Some genes act as instructions to make molecules called proteins. Alleles are forms of the same gene with small differences in their sequence of dna bases"". Types: a gene is a short section of dna. Dna is made up of millions of small chemicals called bases. Genes are a set of instructions that determine what the organism is like, its appearance, how it survives, and how it behaves in its environment. Genes are made of a substance called deoxyribonucleic acid, or dna. They give instructions for a living being to make molecules called proteins. A gene is a small section of dna that contains the instructions for a specific molecule, usually a protein. Genes are small sections of dna within the genome that code for proteins. They contain the instructions for our individual characteristics like eye and hair color.
