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Regeneration - Root and Shoot Morphogenesis
Higher plants have three kinds of regenerative activities;
All plants possess inherent ability to regenerate lost parts. For example when a part of mature tissues are removed from stem, the exposed mature cells undergo differentiation, division and re-differentiation to restore the normal pattern. When a branch is cut and wound is made-damaged tissues are cast off and new cells take this place. A wound also results in the formation of a zone of cells that form a thick protective layer. Induction of hormones like auxins and cytokinins that promote cell division is also a reaction to wound and part and parcel of regeneration. Mobilization of nutrients towards the site of injury, synthesis of new hormones, increased cell division and thickening of cell walls etc. are some of the responses and contribute to regeneration.
As in several fields of molecular biology studies of E. coli have gives the model for subsequent investigations of transcription in eukaryotic cells. The basic mechanisms by that t
Many of the glyceraldehyde 3-phosphate produced by the Calvin cycle in chloroplasts is exported to the cytosol and used to produce the disaccharide, sucrose. 1 st the glyceralde
Q. Preservation of Tooth Structure? Fixed partial dentures have been considered the standard of treatment prior to advent of implant therapy. However, to obtain optimal esthe
LARYN X - Study of larynx is known as Laryngeology. In man it is more prominent than woman known as Adam's apple. It is sound producing organ. At its base trachea presen
Two homologous human chromosomes have the following structure: --A--B-.-C--D--E--F--G--H--I--J-- --A--D--C-.-B--E--F--G--J--I--H-- where the letters represent genetic markers and t
Q. How can the blood coagulation (clotting) process be described? Blood clotting encompasses a sequence of chemical reactions whose respective products are enzymes that catalyz
Q. What are the main phases and clinical manifestations of schistosomiasis? The Schistosomiasis has acute and chronic phases and Days after the infection the cercarial dermatit
gastrulation and its type
Define Disadvantages of using Bacteria as a source of protein? Disadvantages of using Bacteria as a source of protein are as follow: a) If the bacterial strain is very small
Growth-form and Structure In a community the number of species and size of their populations vary greatly. A community may have one or several species. The environmental factor
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