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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.
For homework, I had to prove that a certain catalyst was a protein, then tell how I would purify the protein, then tell how I would clone a human chromosomal region that contains t
What is the greenhouse effect? The greenhouse effect is a phenomenon in which atmospheric gases like CO 2 trap reradiated heat from the Earth, much as the glass panes of a gre
Snakes Non-poisonous snakes can be brought into the classroom for observation. The diagram shows how a safe cage can be made for keeping a snake. The bottom should be covered w
Q How can the endoskeleton of echinoderms be characterized in comparison to analogous structures present in vertebrates, arthropods and molluscs? The echinoderm skeleton is int
Non-threshold approaches For genetic carcinogenes, the "NOEL-safety factor" approach is generally not considered a suitable method for setting the acceptable intake level
Symmetry - Metazoa All living organisms have some body shape and form. The general body plan of animals may be organized in one of several ways . Arrangement of parts or organ
Explain Acute Infections Fever Acute Infections Fever: Acute fevers are of short duration with acute symptoms, the body temperature may rise to above 104°F. Examples of such i
binomial nomenclature is not applicable to
Neurological symptoms and signs occur in 30 to 40 per cent of patients with IE, are more frequent when IE is caused by S. aureus, and are associated with increased mortality rates.
Leukaemia Leukaemia is a malignant disease of blood forming organs of the body that results in uncontroled growth of immature white blood cells. The leukaemic process in t
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