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Gene | Definition, Structure, Expression, & Facts | Britannica
https://www.britannica.com/science/gene
WEBApr 3, 2024 · Gene, unit of hereditary information that occupies a fixed position on a chromosome. Genes achieve their effects by directing the synthesis of proteins. They are composed of deoxyribonucleic acid (DNA), except in some viruses, which have genes consisting of a closely related compound called ribonucleic acid (RNA).
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Gene - Wikipedia
https://en.wikipedia.org/wiki/Gene
WEBIn biology, the word gene (Greek: γένος, génos; generation, or birth, or gender) 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.
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What is a gene?: MedlinePlus Genetics
https://medlineplus.gov/genetics/understanding/basics/gene/
WEBMar 22, 2021 · 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. However, many genes do not code for proteins. In humans, genes vary in size from a few hundred DNA bases to more than 2 million bases.
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Home - Gene - NCBI - National Center for Biotechnology Information
https://www.ncbi.nlm.nih.gov/gene
WEBGene. 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.
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Gene - Definition and Examples | Biology Dictionary
https://biologydictionary.net/gene/
WEBOct 27, 2020 · Definition. 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.
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Gene
https://www.genome.gov/genetics-glossary/Gene
WEB4 days ago · Definition. 00:00. … 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.
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Genes: Function, makeup, Human Genome Project, and research
https://www.medicalnewstoday.com/articles/120574
WEBJan 11, 2024 · What are genes? Genes are strands of DNA that contain the biological instructions for life. Each gene contains sequences that determine physical and biological traits. Medical...
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Genes - National Geographic Society
https://www.nationalgeographic.org/encyclopedia/genes/
WEBOct 19, 2023 · Genes. ENCYCLOPEDIC ENTRY. Genes are units of hereditary information. A gene is a section of a long molecule called deoxyribonucleic acid (DNA). Grades. 5 - 8. Subjects. Biology, Genetics. Image. Identical twin men. Genes determine the physical appearance of all animals.
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Explainer: What are genes? - Science News Explores
https://www.snexplores.org/article/explainer-what-are-genes
WEBFeb 8, 2019 · Genes are the blueprints for building the chemical machinery that keeps cells alive. That’s true for humans and all other forms of life. But did you know that with 20,000 genes, people have almost 11,000 fewer genes than water fleas? If the number of genes doesn’t predict complexity, what does?
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Chromosomes and genes (article) | Khan Academy
https://www.khanacademy.org/science/ms-biology/x0c5bb03129646fd6:inheritance-and-variation/x0c5bb03129646fd6:chromosomes/a/chromosomes-and-genes-ms
WEBGenes are pieces of hereditary material that are passed from parents to offspring. Genes are part of cell structures called chromosomes. In multicellular organisms, chromosomes are found in the nucleus of the cell. Each of these chromosomes contains one, long molecule of DNA, or d eoxyribo n ucleic a cid.
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