Go to Section
- N-acetylglucosamine (NAG)
- nanos
- [role of gene in Drosophila segmentation] [establishing the tail of the Drosophila embryo]
- Natural Killer (NK) Cells
- Natural selection
- [types] [effect on gene pool]
- Nearsightedness
- Nekton
- Nematoda
- Neoantigen
- Nephron
- Neritic zone
- Nerve
- Bundle of axons.
- Nervous system
- [human central nervous system (CNS)] [human peripheral nervous system (PNS)]
- Net productivity
- Neural folds
- Neuraminidase of influenza virus
- Neuromuscular junction
- Neuron
- A nerve cell. [Structures] [Function]
- Neuropeptide Y
- Neurospora crassa
- Neurotransmitter
- Substance released at the axon terminals of a neuron that either stimulates or inhibits the next neuron or muscle fiber. Acetylcholine and noradrenaline are neurotransmitters. [Discussion]
- Neutron
- Neutrophil
- NF-AT ["Nuclear Factor of Activated T cells]
- NF-κB ["Nuclear Factor - kappa B"]
- Niacin
- Nicotinic acid, one of the B vitamins.
- Niche
- The place in a biological community occupied by a particular species in its relation to other species.
- Nicotinamide adenine dinucleotide (NAD) and nicotinamide adenine dinucleotide phosphate (NADP)
- Coenzymes that transfer electrons within the cell. [Discussion and structure] [in Calvin cycle] [from light reactions] [NADH dehydrogenase]
- Nicotinic acetylcholine receptors
- Nilsson-Ehle, H.
- Nitric oxide (NO)
- [physiological functions]
- Nitrification
- Nitrogen cycle
- Nitrogen fixation
- The conversion of atmospheric nitrogen (N-N) into nitrogen-containing compounds like ammonia. [Discussion] [symbiotic]
- Nitrogen oxides (NOx)
- [and acid rain] [and photochemical smog]
- NKT Cells
- N-linkage
- NMDA receptors
- Nociceptors (pain receptors)
- Nodal
- Node
- (1) In plants, the point on the stem at which one or more leaves develop. [diagram] (2) of Ranvier
- noggin gene
- Nondisjunction
- Nonhomologous End-Joining (NHEJ)
- Nonsense-Mediated mRNA Decay (NMD)
- Noradrenaline (norepinephrine)
- Northern blot
- NO synthases (NOS)
- Notch signaling
- Notochord
- [in frog embryology]
- N-regions of antigen receptor genes
- NSAIDs
- nonsteroidal anti-inflammatory drugs (e.g., aspirin)
- N-terminal
- Nuclear localization sequence
- Nuclear Pore Complexes (NPCs)
- Nuclease
- An enzyme that hydrolyzes a nucleic acid, DNA or RNA. Examples: DNase I, Ribonuclease P.
- Nucleic acid
- A polymer of nucleotides; DNA and RNA.
- Nucleolus
- Nucleomorph
- Nucleoside
- Nucleosomes
- Nucleotide
- [Antisense oligonucleotides]
- Nucleotide Excision Repair (NER) of DNA
- Nucleus
- Nucleus accumbens
- Nude Mouse
- Null hypothesis
- Nutrition
- [requirements] [gastrointestinal (GI) tract]