Case of the Drought Resistant Genetically Engineered Corn Plant Glossary
- available water
The water that can move from the soil to the plant by entering the plant root system.
- boundary layer
A region of still air near the surface of a leaf through which water must diffuse en route to the atmosphere.
- DNA
(deoxyribonucleic acid) The molecule that encodes genetic information. DNA is a double-stranded molecule held together by weak bonds between base pairs of nucleotides. It is the fundamental substance of which genes are composed.
- gene
The fundamental unit of heredity that carries genetic information from one generation to the next. A gene is an ordered sequence of nucleotides located on a particular position on a particular chromosome that encodes a specific functional protein.
- genes
The fundamental unit of heredity that carries genetic information from one generation to the next. A gene is an ordered sequence of nucleotides located on a particular position on a particular chromosome that encodes a specific functional protein.
- genetic engineering
The process of adding foreign DNA to the genome of an organism.
- genetics
The branch of biology that deals with heredity, especially the mechanisms of hereditary transmission and the variation of inherited characteristics among similar or related organisms.
- photosynthesis
The process in which plants use light energy to make sugars and other organic food molecules from carbon dioxide and water.
- proteins
Large molecules composed of one or more chains of amino acids in a specific order. Proteins are necessary for the structure, function, and regulation of the organism's cells, tissues, and organs. Each protein has a unique function determined by its shape.
- resistance
The ability of an organism to survive and thrive in the presence of something that would normally cause damage or death, i.e., herbicide-resistant corn, Roundup-ready corn.
- resistant
The inherited ability of a plant to survive and reproduce following exposure to a dose of herbicide normally lethal to the wild type. In a plant, resistance may be naturally occurring or induced by such techniques as genetic engineering or selection of variants produced by tissue culture or mutagenesis.
- seed
Ripened fertilized ovule of a flowering plant that contains an embryo and normally capable of germination.
- trait
The characteristic that results from an expressing gene(s). Ex. Upright leaves, drought tolerance, Bt resistance. A trait can be influenced by the environment.
- transgene
A gene that has been genetically altered. They are usually used to transform organisms.
- transgenic plant
A plant that has a new genetically engineered DNA sequence present in every one of its cells. Genetically engineered plants are transgenic plants. These two terms are used interchangeably.