| A | B |
| Genome | The total hereditary material of a cell. |
| Hybrid | In selective breeding, it usually refers to the offspring of two different species or strains. |
| Mutation | When an organism is changed or altered from its parent or original form. |
| Nucleic acid | A biological molecule composed of a long chain of nucleotides. All DNA is made from four different nucleotides that. like a four-letter alphabet, are arranged in a variety of different orders. |
| Phenotypes | The observable characteristic of an organism as opposed to the set of genes it possesses (its genotype). The physical appearance. |
| Plasmid | A small, circular piece of DNA found outside the chromosome in bacteria. Plasmids are the principal tools for inserting new genetic information into microorganisms or plants. |
| Protein | A complex biological molecule composed of a chain of units called amino acids. They carry out the functions of an organism, such as growth and repair of tissue. |