Dictionary,Defintion,Meaning,What is Autosome, Avitaminosis, Autonomy, Autophagy, Autopolyploid, Autoradiograph, Autosylic Jaw Suspension, Autotrophs, Autotomy

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Home >>Biology Dictionary >> Autosome - Avitaminosis

Your Ad Here	Autonomy Refers to self amputation of damaged part of body. Autophagy It is the process by which unwanted substances within the cell are removed. Autopolyploid Polyploid in which all the chromosomes derived from the same species. Autoradiagraph Photographyic picture of the localization of radioactive substance in tissues, obtained by laying photographic emulsion in the dark on a thin preparation (usually a section) of the tissue and developing the image that is produced by the radioactivity. Commonly used in tracer work.
Autotomy The shedding by a animal of part of the bod, e.g. lizard can break off tail when it is seized by a predator, muscular action snapping a vertebra. Lost part is usually regenerated. Autotrophism A type of nutrition in which organisms synthesize the organic materials they require from inorganic sources. Chief sources of carbon and nitrogen are carbon dioxide and nitrates, respectively. All green plants are autotrophic and use light as a source of energy for the synthesis, i.e. that are photoautotrophic (see photosynthesis). Some bacteria are also photoautotrophic; other are chemoautotrophic, using energy derived from chemical processes. Compare hetetrophism. Autosome Chromosome in a call which is not a sex chromosome.
Auxanometer Any mechanical instrument or measuring device used to study the growth or movement of plant organs. One type of auxanometer consists of a recording device that translates any increase in stem height into movement of a needle across a scale. Auxin Any of a group of plant growth substances responsible for such processes as the promotion of growth by cell enlargement, the maintenance of apical dominance, and the initiation of root formation in cuttings. Naturally occurring auxins, such as induleacetic acid (IAA), are synthesized in the shoot tips. Synthetic auxins, such as 2, 4-D2,4,5-T, are used as weed killers.	Your Ad Here
Avitaminosis It is a disease that is caused due to lack of vitamins. Awn. (Arista) Stiff, bristle-like aypendage occurring frequently on the flowering glumes of grasses and cereals. Axenic (Of a culture of an organism) having no other kind of organism present; a pure culture. Autosylic Jaw Suspension A type of a jaw suspension found in amphibians, reptiles and some fishes whereby the upper jaw is attached directly to the skull. See amphistylic jaw suspension, hyostylic jaw suspension. Autotrophs Green plants that show the phenomenon of synthesis.
Your Ad Here	Axial Skelton It is made up of skull verbetral column, stermum and ribs. The total number of bones in them is 80. Axil (Of a leaf) angle between the branch or leaf and the stem on which it is brone; normal position for lateral buds. Axis (Embryonic axis) The complex enlogated structure comprising nervous system, notochord and so mites in a vertebrate embryo. (Axis Vertebra). Second vertebra of amniote, modified for supporting the head.

Aves
class of vertebrates, including the birds. Characterized by feathers, warm blood. Wings developed from fore-limbs. A part from some fossil forms (e.g. Archaeopteryx) birds from a highly inform class. Descended from reptiles related to dinosaurs and crocodiles; and still have many reptilian features.

Avirulent
Lacking virulence i.e. the ability of an organism to cause disease is absent.

Axoplasm
The cytoplasm which occurs within the axon.

Azobactor
It is a nitrogen fixing bacteria.

Azodye
Any of a class of artificial dues obtained from aromatic amines.

Axon
The long thread-like part of nerve cell, normally conducting impulses away from the nerve cell body (Cf. Dendrite). Often covered by myelin.

Axoneme
The complex of microtubules and associated tubes found in the shaft of a cilium or flagellum.

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