What is a Phenotype? Examples of Phenotypes and Mendel’s Peas

What is a Phenotype? A Phenotype is the physical expression of DNA. Rather, a genotype is the chemical composition of DNA that causes a particular phenotype. DNA is first transferred to RNA, which is a separate information molecule, which can then be translated into protein. Phenotypes are caused by interactions of many different proteins produced by DNA. … Read more

What is an adaptation?Types, Examples, and Mammals

What is an adaptation? An adaptation, or adaptive trait, is a trait produced by DNA or an indigenous’s interaction with the environment. While not all adaptations are entirely positive, for an adaptation to persist in a population it must increase fitness or reproductive success. All children, whether sexually or asexually, inherit their qualities from their … Read more

What is antioxidant?Function, Benefits, and Examples

What is antioxidant? Antioxidants are molecules that prevent the oxidation of other molecules. Oxidation is a chemical reaction in which electrons are lost. In living things, this process can be harmful, causing a breakdown of organic molecules. One challenge of life on Earth is that oxygen makes it a great electron acceptor, which makes chemical reactions … Read more

Gene Definition, Overview, Examples, And Genetic Terms

Gene Definition A gene is a highly specific sequence of nucleotide monomers that can fully or partially regulate 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. Overview|Gene Definition It was Wilhelm Johansen … Read more

Coenzyme Definition, functions, Types, and Examples

Coenzyme Definition A coenzyme is a non-protein organic compound that binds with an enzyme to catalyze a reaction. Coenzymes are often widely called cofactors, but they are chemically different. A coenzyme cannot work on its own, but it can be reused multiple times when combined with an enzyme. Coenzyme functions An enzyme without a coenzyme is called apoenzyme. … Read more

Chitin Definition, Examples, Function, and Structure

Chitin Definition Chitin is a large, structural polysaccharide composed of chains of modified glucose. Chitin is found in the exoskeleton of pests, the fungal cell wall and invertebrates, and some hard structures in fish. In terms of abundance, chitin is second only to cellulose. In the biosphere, more than 1 billion tons of chitin are … Read more

Osmosis Definition, Process, Types, Examples, and Osmotic Pressure

Osmosis Definition Osmosis is a biophysical process that typically occurs in biological systems where the molecules of the solvent move towards a region of high solute concentration in a semi-permeable membrane. It is a type of passive transport and is directed towards a direction that equates solute concentrations across a semi-permeable membrane. It is a common … Read more

Apoptosis Definition, Mechanisms, Regulation, Significance And, Examples

Apoptosis definition Apoptosis is a normal genetically programmed cell death where an aging cell at the end of its life cycle contracts and its remaining fragments are phagocytosed without any inflammatory reaction. The term apoptosis was first introduced in an article in 1972 by Kerr, Wyllie, and Currie to describe a morphologically distinct type of … Read more

Transposable elements, Types, examples, applications

Transposable elements definition Transposable elements (TE, transposon, or jumping gene) Transposable elements (TE) or transposons can be defined as small mobile DNA sequences that move around chromosomes regardless of homology, and insertion of these elements can lead to deletions, inversions, chromosomal fusions, and even further rearrangements. complicated. Transposons are mobile genetic elements that often carry … Read more

Photosynthesis Definition, Process, equation, and examples

Photosynthesis Definition Photosynthesis is defined as the process, used by green plants and photosynthetic bacteria, where electromagnetic radiation is converted to chemical energy and uses the energy of light to convert carbon dioxide and water to carbohydrates and oxygen. Carbohydrates formed from photosynthesis provide not only the energy necessary for energy transfer within ecosystems but … Read more

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