In biology, the word gene has two meanings. The Mendelian gene is a basic unit of heredity. The molecular gene is a sequence of nucleotides in DNA that is transcribed to produce a functional …

Oct 12, 2025 · gene; intron and exon Genes are made up of promoter regions and alternating regions of introns (noncoding sequences) and exons (coding sequences). The production of a …

Jul 9, 2025 · Genes are segments of DNA that give your cells instructions for specific traits or body functions. Different versions of the same gene are called alleles.

2 days ago · The gene is considered the basic unit of inheritance. Genes are passed from parents to offspring and contain the information needed to specify physical and biological traits.

Jul 23, 2025 · A gene is a basic unit of heredity in biology. It carries instructions encoded in DNA that control the manufacture of particular proteins or useful RNA molecules.

6 days ago · Genes, DNA, and chromosomes make up the human genome. Learn the role they play in genetics, inheritance, physical traits, and your risk of disease.

May 15, 2024 · What to know This page provides information about basic genetic concepts such as DNA, genes, chromosomes, and gene expression. Genes play a role in almost every …

May 21, 2024 · What is a gene? A gene is the basic physical and functional unit of heredity. Genes are made up of DNA. Some genes act as instructions to make molecules called …

Genes are made up of sequences of DNA and are arranged, one after another, at specific locations on chromosomes in the nucleus of cells.

Aug 4, 2025 · A gene is a section of a long molecule called deoxyribonucleic acid (DNA), or—in some viruses —a similar, simpler molecule called ribonucleic acid (RNA). DNA and RNA are …