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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 RNA.

Gene | Definition, Structure, Expression, & Facts | Britannica
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? - Cleveland Clinic
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.

What Is Genetics? Genes, DNA, and Inherited Traits
A gene is a specific stretch of DNA that carries the instructions for making one particular protein or performing one particular function. Humans have roughly 19,400 protein-coding genes, but the total number of genes (including those with regulatory and other roles) is closer to 78,700. All of these genes, packaged together, make up your genome.

Gene
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.

What Is Genetics? - National Institute of General Medical ...
Genetics is the study of genes and heredity—how traits are passed from parents to children through DNA. A gene is a segment of DNA that contains instructions for building one or more molecules that help the body work. Researchers estimate that humans have about 20,000 genes, which account for about 1 percent of our DNA. The remainder of the DNA plays a role in regulating genes, and ...

Genetics Basics | Genomics and Your Health | CDC
Genes are specific sections of DNA that have instructions for making proteins. Proteins make up most of the parts of your body and make your body work the right way. You have two copies of every gene. You inherit one copy from your father and one copy from your mother.

 

 

 

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