Hybrid in Biological Definition

Origin of life

... models: iron-sulfur world and others 2.2.3 hybrid models 3 Other models 3.1 Clay ... -first"). Recently, trends are emerging to create hybrid models that combine aspects of both. "Genes ... sets discussed later in that decade. hybrid models A growing realization of the inadequacy ...

Species

... that it has become negligible. Generally, the hybrid individuals are less capable of successful ... information about the evolutionary fitness of hybrid individuals. A certain amount can be inferred ... classified as separate species. There is a hybrid zone where the two populations mix. Typically, ...

Affinity chromatography

... removing the liquid phase, washing, re-centrifuging , adding the elution buffer , re-centrifuging and removing the eluate. Sometimes a hybrid method is employed, the binding is done by the batch method, then the solid phase with the target molecule bound is packed onto a column and washing ...

Biological psychology

... Biological psychology may be looked at as a hybrid of neuroscience and psychology . Practitioners of biological psychology may use their knowledge of the brain , from neurotransmitters to the ...

Cloning

... for commercial reasons mice : over a dozen as of 2002 rabbit : (March-April, 2003) in France and North Korea independently. Human -rabbit hybrid in China (August, 2003) mule : Idaho Gem (male, May 2003) and Utah Pioneer (male, June 2003) deer : Dewey (2003) horse : Prometea ...

DNA

... The A form appears likely to occur only in dehydrated samples of DNA, such as those used in crystallographic experiments, and possibly in hybrid pairings of DNA and RNA strands. Segments of DNA that cells have methylated for regulatory purposes may adopt the Z geometry, in which the ...

Homunculus

... would turn on its creator and run away. The recipe consisted of a bag of bones, sperm, skin fragments and hair from any animal you wanted it to be a hybrid of. This was to be laid in the ground surrounded by horse manure for forty days, at which point the embryo would form. A variant method for ...

Life

... metabolism. Many of the possibilities have tended to fall into either " genes -first" or " metabolism -first"; a recent trend is the emergence of hybrid models that combine aspects of both. The possibility of extraterrestrial life Main articles: Extraterrestrial life , Xenobiology As of ...

Monoclonal antibody

... that can grow indefinitely in culture (myeloma is a B-cell cancer). This fusion is done by making the cell membranes more permeable. The fused hybrid cells (called hybridomas ) will multiply rapidly and indefinitely (since they are cancer cells after all) and will produce large amounts of ...

Oncogene

... can cause a change in the protein structure, caused by an increase in protein ( enzyme )activity a loss of regulation the creation of a hybrid protein , through a chromosomal aberration during cell division . A distinct aberration in a dividing stem cell in the bone marrow leads to ...

Proteomics

... or 2-D electrophoresis is used to identify and quantify all the levels of proteins found in cells. Affinity chromatography , yeast two hybrid techniques, fluorescence resonance energy transfer (FRET), and Surface Plasmon Resonance (SPR) are used to identify protein-protein and ...

RNA

... called the coding strand (so called because it logically has the equivalent nucleotide sequence of the new RNA strand). A small stretch of DNA-RNA hybrid is present at the active site of the enzyme. The synthesis continues until a termination sequence is reached. The resulting RNA molecule is the ...