Technology, science and the universe
Nitrogen Fixation
Nitrogen fixation is the biological process by which nitrogen gas (N₂) present in the atmosphere is converted into ammonia (NH₃) or other nitrogenous forms that are usable by living organisms. This…
Life sciencesNociceptor
Nociceptors are specialized sensory receptors that respond to stimuli that can cause tissue damage, such as extreme heat, intense pressure, or harmful chemicals. Their primary function is to detect…
Life sciencesNomenclatural Code
A nomenclatural code is a set of rules and recommendations for naming organisms, aimed at providing a standardized and universally accepted system for the identification of species and other…
Life sciencesNon-infectious gastroenteritis
Non-infectious gastroenteritis is the inflammation of the stomach and intestines not caused by infectious agents such as viruses, bacteria, or parasites. Instead, this condition is often the result…
Life sciencesNorovirus gastroenteritis
Norovirus gastroenteritis is a highly contagious viral infection that causes inflammation of the stomach and intestines. This virus, which belongs to the Caliciviridae family, is known for its…
Life sciencesNuclear DNA
Nuclear DNA refers to the genetic material found within the nucleus of eukaryotic cells. This type of DNA is fundamental for biological inheritance, as it contains the instructions necessary for the…
Life sciencesNuclear Envelope
The nuclear envelope is a double membrane that encloses the nucleus of a cell, separating the nuclear content from the cytoplasm. This structure is fundamental for cellular organization, as it not…
Life sciencesNuclear Genome
The nuclear genome is the genetic material contained within the nucleus of a cell. This genome is primarily composed of DNA (deoxyribonucleic acid), which is organized into structures called…
Life sciencesNuclear Pore Complex
The nuclear pore complex is a large protein complex that spans the nuclear envelope and regulates the transport of molecules between the nucleus and the cytoplasm of the cell. This complex is made up…
Life sciencesNuclear Receptor
Nuclear receptors are a class of proteins that regulate gene expression in response to hormones and other signaling molecules. These proteins are located in the cell nucleus and act as transcription…
Life sciencesNuclear Transfer
Nuclear transfer is a technique used in cloning where the nucleus of a donor cell is transferred to an egg cell. This process involves removing the nucleus from an egg, which is the female…
Life sciencesNucleic Acid
Nucleic acids are essential biopolymers for all known forms of life, including DNA and RNA. These complex molecules are composed of chains of nucleotides, which are the basic units containing a…
Life sciencesNucleotide
A nucleotide is the basic unit of nucleic acids, such as DNA and RNA. Each nucleotide consists of three main components: a phosphate group, a five-carbon sugar (ribose in the case of RNA and…
Life sciencesNucleotide Analog
Nucleotide analogs are molecules that resemble nucleotides, the basic units that make up nucleic acids such as DNA and RNA. These molecules can interfere with nucleic acid synthesis by being…
Life sciencesNucleotide Binding
Nucleotide binding refers to the interaction between a nucleotide and a protein or enzyme. Nucleotides are the basic units that make up nucleic acids, such as DNA and RNA, and consist of a phosphate…
Life sciencesNucleotide Excision Repair
Nucleotide excision repair (NER) is an essential DNA repair mechanism that removes damaged segments of DNA, specifically those that exhibit distortions in the double helix. This process is crucial…
Life sciencesNucleotide Polymorphism
Nucleotide polymorphism refers to the occurrence of two or more different nucleotides at a specific position in the genome. This phenomenon is fundamental to the genetic variability of populations…
Life sciencesNucleotide Sequence
A nucleotide sequence is a series of nucleotides in a DNA or RNA molecule. Nucleotides are the basic units that make up nucleic acids and consist of three components: a phosphate group, a sugar…
Life sciencesNucleotide Transport
Nucleotide transport refers to the movement of nucleotides across cellular membranes. Nucleotides are the basic units that make up DNA and RNA, and their transport is essential for various biological…
Life sciencesNucleotide Triphosphate
Nucleotide triphosphates are nucleotides that contain three phosphate groups, giving them a crucial role in energy transfer within cells. These compounds are fundamental for various biological…
Life sciencesNutraceutical Hybrid
A nutraceutical hybrid is a product that combines food and pharmaceutical properties, designed to offer both nutritional and therapeutic benefits. These products sit at the intersection of food and…
Life sciencesNutrient-Enhanced Hybrid
A Nutrient Enhanced Hybrid refers to a crop variety that has been genetically modified or selected to optimize the delivery of essential nutrients to consumers. These hybrids are the result of…
Physical and Earth sciencesNutrient-Optimized Hybrid
A Nutrient-Optimized Hybrid is a type of crop that has been specifically designed to maximize the efficiency of nutrient absorption and utilization. This approach is based on the combination of…
Life sciencesNutrient-Rich Hybrid
A nutrient-rich hybrid refers to a variety of plants or crops that have been specifically developed to maximize their nutritional content. These hybrids are the result of selective breeding…