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- 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.
www.britannica.com/science/geneGene | Definition, Structure, Expression, & Facts | Britannica
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2 days ago · 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.
- The Editors of Encyclopaedia Britannica
Feb 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?
Oct 27, 2020 · 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.
Sep 8, 2023 · A gene is a sequence of nucleotides in a particular nucleic acid. Thus, it is a segment in DNA or RNA molecule that encodes for either an RNA or a protein by gene expression. The nucleotide is the structural unit of a nucleic acid. It is comprised of phosphoric acid, sugar (5-carbon), and a nitrogenous base.
Aug 22, 2024 · Genes are the basic units that determine the traits that we inherit from our parents. They contain coded information found in nearly every cell of the human body. Our genes are made up of DNA, a molecule with this coded information. Hundreds to thousands of genes are found on each chromosome inside our cells.
May 21, 2024 · 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. However, many genes do not code for proteins, instead they help control other genes.
The Normal Gene in a Cell Can Be Directly Replaced by an Engineered Mutant Gene in Bacteria and Some Lower Eucaryotes. Unlike higher eucaryotes (which are multicellular and diploid), bacteria, yeasts, and the cellular slime mold Dictyostelium generally exist as haploid single cells.
