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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.
Of which type of defense cell do worm infections stimulate the multiplication? The major leukocytes that generally multiply and participate in the defense against worm infectio
Feline calcivirus infection This disease is caused by a virus under the family Caliciviridae. Its symptoms include rhinitis, tracheitis and pneumonia. The animals are lethargi
Are the alleles of a gene essentially originated one from the father and the other from the mother? Are there exceptions? It is natural so that alleles have come one from the m
Disorders of motor neurons and the spinal cord A number of movement disorders are produced by damage either to the spinal cord or to cortical projections to the spinal cord. Th
HYOI D BONE - Also called tongue bone as lies at the base of the tonuge. One in number. Muscles of tongue and throat are attached to it. Not e :- Except
Classification of Multicellular Animals The multicellular animals (Animalia) originated from the simpler protozoan protists. You know the simpler multicellular animals further
1. Explain the challenges and advantages of having internal gills over external gills for gas exchange? 2. Explain how increased stress levels can affect hormones which ultimate
Define Protein Concentrates, Isolates and Hydrolysates? The first question that may come to your mind is why do we need to concentrate or isolate a protein from a product? The
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In protozoans flagella are found always one per cell. Flagella and Cilia can generate substantial force as they try to push or pull a protozoan through water. To be able to do that
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