chro|mo|some

chro|mo|some
chro|mo|some «KROH muh sohm», noun.
any one of the rod-shaped bodies found in the nucleus of a cell that appear when the cell divides. Chromosomes are derived from the parents and carry the genes that determine heredity, controlling the development of the organism and determining its nature. They are of a definite number for each species and occur in pairs in most organisms, except in their germ cells. The genetic material in each chromosome is a long polynucleotide strand, usually of deoxyribonucleic acid but sometimes of ribonucleic acid, set in a protein matrix. »

The human embryo develops into a person…because the material carried in its chromosomes, its constellation of genes, initiates and guides a marvelously coordinated sequence of reactions that leads inevitably, under normal conditions, to the differentiation and growth of a human being (Atlantic).

╂[< German Chromosom < Greek chrôma color + sôma body]

Useful english dictionary. 2012.

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Look at other dictionaries:

  • chro·mo·some — …   Useful english dictionary

  • eu|chro|mo|some — «yoo KROH muh sohm», noun. any chromosome except a sex chromosome; autosome …   Useful english dictionary

  • het|er|o|chro|mo|some — «HEHT uhr uh KROH muh sohm», noun. = allosome. (Cf. ↑allosome) …   Useful english dictionary

  • chro|nol|o|gy — «kruh NOL uh jee», noun, plural gies. 1. the science of measuring time and of determining the proper order and dates of events. 2. a table or list that gives the exact dates of events arranged in the order in which they happened. 3. a system of… …   Useful english dictionary

  • chro|ma|type — «KROH muh typ», noun. Photography. 1. a picture made upon paper sensitized with bichromate of potassium or some other salt of chromium. 2. the process of making such pictures. ╂[< chromium + type] …   Useful english dictionary

  • CHRO-TV — Coordinates: 45°25′39.1″N 75°41′28.2″W / 45.427528°N 75.691167°W / 45.427528; 75.691167 …   Wikipedia

  • tri|chro|ism — «TRY kroh ihz uhm», noun. the property of some crystals of exhibiting three different colors when viewed in three different directions. ╂[< Greek tríchroos (< tri three + chróā, for chroi skin, color of skin) + English ism] …   Useful english dictionary

  • chromosome — chro·mo·some …   English syllables

  • chromosome — chro•mo•some [[t]ˈkroʊ məˌsoʊm[/t]] n. gen one of a set of threadlike structures, composed of DNA and a protein, that form in the nucleus when the cell begins to divide and that carry the genes which determine an individual s hereditary traits •… …   From formal English to slang

  • chromosome — chro|mo|some [ˈkrəuməsəum US ˈkrouməsoum] n [Date: 1800 1900; : Greek; Origin: chroma ( CHROMATIC) + soma body ; because chromosomes easily take up coloring substances] a part of every living cell that is shaped like a thread and contains the… …   Dictionary of contemporary English

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