Related Words

Big LEO: Low-earth orbit satellite systems that will offer voice and data services, including Iridium and Globalstar.

Nucleon: A proton or a neutron in the atomic nucleus.

Nucleolus: A round or oval body in the nucleus of a eukaryotic cell; consists of DNA and RNA and produces ribosomal RNA (pl.: nucleoli).

Nucleoside: A nucleotide base bound to a five-carbon sugar.

Nucleosomes: Spherical bodies formed by coils of chromatin. The nucleosomes in turn are coiled to form the fibers that make up the chromosomes.

Nucleotide Base: A heterocyclic nitrogen-containing base that is a constituent of nucleotides. Examples are adenine, guanine, thymine, uracil, and cytosine.

Nucleotide: A molecule which is a basic building block of nucleic acids and which plays a key role in energy transfer in biochemical reactions. Nucleotides consist of a five-carbon sugar, a heterocyclic . . . View Full Definition

Nucleolar Organizing Region: A part of the chromosome containing rrna genes.

Nucleoid: The area of the prokaryotic cytoplasm where the chromatin is localized.

Mandarine Napoleon: A French brandy-based liqueur that is flavored with tangerine skins. Grand Marnier is widely preferred to Mandarine Napoleon.