gene

Pronunciation: (jeen)

The functional and physical unit of heredity passed from parent to offspring. Genes are pieces of DNA, and most genes contain the information for making a specific protein.

Definition from: Cancer.gov

The basic unit of heredity that occupies a specific location on a chromosome. Each consists of nucleotides arranged in a linear manner. Most genes code for a specific protein or segment of protein leading to a particular characteristic or function.

Definition from: Genetics

Structure of DNA. Most DNA is found inside the nucleus of a cell, where it forms the chromosomes. Chromosomes have proteins called histones that bind to DNA. DNA has two strands that twist into the shape of a spiral ladder called a helix. DNA is made up of four building blocks called nucleotides: adenine (A), thymine (T), guanine (G), and cytosine (C). The nucleotides attach to each other (A with T, and G with C) to form chemical bonds called base pairs, which connect the two DNA strands. Genes are short pieces of DNA that carry specific genetic information.Structure of DNA. Most DNA is found inside the nucleus of a cell, where it forms the chromosomes. Chromosomes have proteins called histones that bind to DNA. DNA has two strands that twist into the shape of a spiral ladder called a helix. DNA is made up of four building blocks called nucleotides: adenine (A), thymine (T), guanine (G), and cytosine (C). The nucleotides attach to each other (A with T, and G with C) to form chemical bonds called base pairs, which connect the two DNA strands. Genes are short pieces of DNA that carry specific genetic information.La mayor parte del ADN se encuentra en el interior del núcleo de una célula, donde forma los cromosomas. Los cromosomas contienen proteínas llamadas histonas que se unen al ADN. El ADN tiene dos hebras que se enroscan y forman una escalera de caracol que se llama hélice. El ADN se compone de cuatro componentes básicos que se llaman nucleótidos: adenina (A), timina (T), guanina (G) y citosina (C). Los nucleótidos se unen entre sí (A con T y G con C) para formar enlaces químicos llamados pares de bases, que conectan las dos cadenas de ADN. Los genes son pequeñas piezas de ADN que transportan información genética específica. Date last modified: 2015-02-09GeneThe Genetics of CancerGenGenética del cáncer