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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.
What is Strobilization. Elaborate. The process which converts scyphostome into a strobila during the life cycle of schyphozoans, jellyfish. Transverse divisions of strobila pro
Determine the genotypes and phenotypes of the F1 generaiton from a colour blind father and a mother who is homozygous for normal colour vision
VACUOLES Some animals cells may have one to a few small fluid filled vacuoles.. Plants cells in general possess one or a few large vacuoles. Vacuoles of animals cells
MORPHOLOGICAL AND ANATOMICAL EVIDENCES - (i ) HOMOLOGOUS ORGANS - The organs apparently similar or dissimilar in structure and function, but of similar embryonic origi
Give three ways in which a polar bear is adapted to its environment. A polar bear is adapted to its environment by its high ratio of bulk to surface area, a thick water-repelle
what is taxonomy
Cyanide - Enzyme-activity Control Plants generate cyanide from cyanogenic glucides and histidines. Ethylene biosynthesis is also accompanied by cyanide production. Nitrate red
Define Conical Flask - Nutritional Biochemistry Conical flask is a piece of chemistry laboratory equipment, a container often made of glass, which has a narrow cylindrical mout
Explain The physical work capacity tests? The physical work capacity tests include common tests like running staircases (Step test) or using a bicycle ergo meter or treadmill.
Hounsfield Units: It is an arbitrary scale of gray values for CT. It is an indicator of bone density: - Trabecular bone has a range of 200 - Cortical bone has a range
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