Gene - Wikipedia
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 RNA. There are two types of molecular genes: protein-coding genes and non-coding genes.
Gene | Definition, Structure, Expression, & Facts | Britannica
2024年11月15日 · gene, unit of hereditary information that occupies a fixed position (locus) on a chromosome. Genes achieve their effects by directing the synthesis of proteins. In eukaryotes (such as animals, plants, and fungi), genes are contained within the cell nucleus.
What is a gene? - MedlinePlus
2024年5月21日 · 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 proteins, which are needed for the body to function.
Home - Gene - NCBI - National Center for Biotechnology Information
Gene integrates information from a wide range of species. A record may include nomenclature, Reference Sequences (RefSeqs), maps, pathways, variations, phenotypes, and links to genome-, phenotype-, and locus-specific resources worldwide. Find genes by...
Gene - Definition and Examples - Biology Dictionary
2020年10月27日 · A gene is an extremely specific sequence of nucleotide monomers that has the ability to completely or partially control the expression of one or more traits in every type of living organism. Genes are formed from deoxyribonucleic acid (DNA) and, in the case of some viruses, ribonucleic acid (RNA) polymers.
Gene
4 天之前 · 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. Most genes code for specific proteins, or segments of proteins, which have differing functions within the body.
Genetics Basics | Genomics and Your Health | CDC
2024年5月15日 · This page provides information about basic genetic concepts such as DNA, genes, chromosomes, and gene expression. Genes play a role in almost every human trait and disease. Advances in our understanding of how genes work have led to improvements in health care and public health.
What is a Gene? Colinearity and Transcription Units
In 1958, Francis Crick's sequence hypothesis finally provided an answer to the question: what is a gene? Why is this definition now considered overly simplistic? In the early part of the...
Gene - Definition and Examples - Biology Online Dictionary
2023年9月8日 · A gene is defined as the fundamental, physical, and functional unit of heredity since a gene is comprised of nucleotides (on a specific site on a chromosome) that is responsible for the physical and heritable characteristics or phenotype of an organism. It, therefore, specifies the structure of a protein, and an RNA molecule. Etymology
Genes: Function, makeup, Human Genome Project, and research
2024年1月11日 · A gene is a basic unit of inheritance passed on from male and female parents to their children. Genes contain DNA, which is made up of sequences that determine the physical and...