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Right in Biological Definition

Liver

... and sits immediately under the diaphragm on the right side of the upper abdomen. The liver lies anterior to the gallbladder and superior to the right kidney . The liver is supplied by two major ... form bile ducts. These eventually drain into the right and left hepatic ducts, which in turn merge to ...

Vestibular system

... has an almost parallel counterpart on the right side. Each of these three pairs works in a ... to sense all directions of rotation: while the right horizontal canal gets stimulated during head rotations to the right (Fig 2), the left horizontal canal gets ...

Brain

... lobes that are flanked by two large optical lobes on the left and right (Butler, 2000). The brains of craniates develop from the anterior ... a function. Myth: Mental abilities are separated into the left and right cerebral hemispheres . Myth: Creativity can be easily developed ...

Insulin

... The central problem for those requiring external insulin is picking the right dose of insulin and the right timing. Physiological regulation of blood glucose, as in the ...

Polymerase chain reaction

... PCR through amplification of the viral DNA. This analysis is possible right after infection, which can be from several days to several months before ... anneal a short distance away from the mutation, while the other anneals right on the variation. The 3' end of the allele-specific primer is modified, to ...

Prion

... ability to bypass the species barrier to transmission. The figure at right shows a model of two conformations of PrP; on the left is the normal, alpha helical form, while on the right is the prion form. Note the increased sheet content (green arrows) in ...

Alcohol

... reflux with a catalyst of concentrated sulfuric acid : R-OH + R'-COOH R'-COOR + H 2 O In order to drive the equilibrium to the right and produce a good yield of ester, water is usually removed, either by an excess of H 2 SO 4 or by using a Dean-Stark apparatus . Esters may also ...

Artificial life

... self-replicating "machine", but also as a universal computer as defined by Alan Turing . Von Neumann worked on his automata theory intensively right up to his death, and considered it his most important work. Homer Jacobsen illustrated basic self-replication in the 1950s with a model train ...

Biodiversity

... a mirror of our relationships with the other living species, an ethical view with rights, duties, and education. If humans consider species have a right to exist, they cannot voluntarily cause their extinction. Besides, biodiversity is also part of many cultures spiritual heritage (see indigenous ...

Bacterium

... bacteria. See: endosymbiotic theory . Microorganisms are widely distributed and are most abundant where they have food, moisture, and the right temperature for their multiplication and growth. They can be carried by air currents from one place to another. The human body is home to billions ...

Bioinformatics

... instead the sequences of thousands of small DNA fragments (each about 600 nucleotides long). The ends of these fragments overlap and, aligned in the right way, make up the complete genome. Shotgun sequencing yields sequence data quickly, but the task to re-align the fragments can be quite complicated ...

Centriole

... and algae though not frequently in plants . The walls of each centriole are composed of nine triplets of microtubules , each arranged at a right angle such that when looking down the tube, one end of the triplet pair points slightly outwards and the other end points slightly inwards. In ...

Bioinformatics

... instead the sequences of thousands of small DNA fragments (each about 600 nucleotides long). The ends of these fragments overlap and, aligned in the right way, make up the complete genome. Shotgun sequencing yields sequence data quickly, but the task to re-align the fragments can be quite complicated ...

Bacterium

... bacteria. See: endosymbiotic theory . Microorganisms are widely distributed and are most abundant where they have food, moisture, and the right temperature for their multiplication and growth. They can be carried by air currents from one place to another. The human body is home to billions ...

Evolution

... but use those organisms as systems to answer general questions in evolution. Evolutionary biology as an academic discipline in its own right emerged as a result of the modern evolutionary synthesis in the 1930s and 1940s . It was not until the 1970s and 1980s , however, that a ...

Evolutionary biology

... biology History Main article: History of evolutionary thought Evolutionary biology as an academic discipline in its own right emerged as a result of the modern evolutionary synthesis in the 1930s and 1940s . It was not until the 1970s and 1980s , however, that a ...

Gene therapy

... much harder than modifying simple bacteria, primarily because of the problems involved in carrying large sections of DNA and delivering it to the right site on the genome. Types of gene therapy In theory it is possible to transform either somatic cells (most cells of the body) or cells of ...

Glucose

... the D -isomer is found. Whether a carbohydrate is D or L has to do with the isomeric conformation of the hydroxyl on carbon 5. If it is to the right in the Fischer projection , then the ring form will be the D enantiomer, if it is to the left, it will be the L enantiomer. This is easy to ...

Homeobox

... Drosophila melanogaster and have subsequently been identified in many other species, from insects to reptiles and mammals . The diagram to the right is a structural model of the Rattus norvegicus Pit-1 homeobox-containing protein (purple) bound to DNA. Pit-1 is a regulator of growth hormone ...

Kidney

... means they lie behind the peritoneum , the lining of the abdominal cavity . They are approximately at the vertebral level T12 to L3, and the right kidney usually lies slightly lower than the left in order to accommodate the liver . The upper parts of the kidneys are partially protected by the ...

Leaf

... for describing leaf characteristics. The leaves on this plant are arranged in pairs opposite one another, with successive pairs at right angles to each other ("decussate") along the red stem. Note developing buds in the axils of these leaves. Leaves may be classified in many ...

Lambda phage

... i.e. cI refers to the gene, whilst cI is the resulting protein encoded by that gene. The lambda repressor gene system consists of (from left to right on the chromosome): cI gene OR3 OR2 OR1 cro gene The lambda repressor is a dimer also known as the cI protein. It regulates the ...

Lung

... ; this allows the inner and outer layers to slide over each other, and prevents them from being separated easily. The left lung is smaller than the right one to give way for the heart. Human lungs See human lung . Avian lungs Birds have a complex but highly efficient crosscurrent ...

Meiosis

... (central and lateral elements) pairing homologous chromosomes, 1% of DNA that wasn't replicated during the S phase replicates. Pachytene : starts right after the synaptonemal complex is fully formed (when synapsis ends), crossing over occurs. Diplotene : synaptonemal complex dissasembles ...

Microscope

... a different purpose. It uses two eyepieces (or sometimes two complete microscopes) to provide slightly different viewing angles to the left and right eyes. In this way it produces a three-dimensional (3-D) visualisation of the sample being examined. Scientist using a stereo ...

Molecular biology

... of molecular biology. Increasingly many other fields of biology focus on molecules, either directly studying their interactions in their own right such as in cell biology and developmental biology , or indirectly, where the techniques of molecular biology are used to infer historical ...

Osmoregulation

... prevent diffusion of water by osmosis from the side containing pure water. Animals in all environments (aquatic and terrestrial) must maintain the right concentration of solutes and amount of water in their body fluids; this involves excretion: getting rid of metabolic wastes and other substances such ...

Rudolf Steiner

... spiritual world exists out of which the material one gradually condensed, so to speak, and evolved. The spiritual world, Steiner held, can in the right circumstances be researched through direct experience, by persons practicing rigorous forms of ethical and cognitive self-discipline. Steiner ...

Sociobiology

... rendering it a pseudo-science. Wilson and his admirers countered these criticisms by denying that Wilson had a political agenda, still less a right wing one. They pointed out that Wilson had personally adopted a number of liberal political stances and had attracted progressive sympathy for his ...

Stem cell

... linking the inside of the nose involved in the sense of smell) have the ability to develop into many different cell types if they are given the right chemical environment. These adult olfactory stem cells appear to have the same ability as embryonic stem cells in giving rise to many different ...
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