Related Words

Somatic Cell Genetic Mutation: A change in the genetic structure that is neither inherited nor passed to offspring. Also called acquired mutations.

Mutation: Any heritable change in the nucleotide sequence of DNA; can involve substitutions, insertions, or deletions of one or more nucleotides.

Mutation Rate: The average occurrence of mutations in a species per a given unit of time.

Nacelle: A streamlined enclosure or housing to protect something such as the crew, engine, or landing gear. French: nacelle, from Latin, navicella, little ship.

Multicellular: Organisms composed of multiple cells and exhibiting some division of labor and specialization of cell structure and function.

Multicell Storm: A thunderstorm made up of two or more single-cell storms.

Missense Mutation: A change in the base sequence of a gene that alters or eliminates a protein.

Molecular Genetics: The study of macromolecules important in biological inheritance.

Monticello: V. hybrid cultivar derived from a complex (Fredonia x Niagara) x (Fredonia x Athens) parentage cross. Released in 1973, this productive, disease resistant variety resembles Steuben. Normally . . . View Full Definition

Nocello Walnut: Nocello, from the Emeligia-Romagna region of Italy