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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.
Define the uses of foams The foams frequently used in cookery are whipped cream, ice cream, cake, bread, meringues, milk froth and gelatin. Food foams contain large amounts of
Q. What is Insulin Dependent Diabetes Mellitus? Mostly children and adolescents suffer from this type of diabetes however; it may appear in adults and elderly too. In this, the
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Illustrate in detail about the Cell theory All living organisms are composed of cells, and they are the basic structural and functional units of life, just like the atom is a
What proportion of children with Down syndrome do you expect when women with down syndrome have children with men who have 46 chromosomes? Justify answer
Substrates are reagent molecules upon which enzymes act. The enzyme has spatial binding sites for the attachment of its substrate. These sites are known as activation centers of
Define briefly about the Conjugated Proteins? Conjugated proteins are made up of simple proteins combined with a non- proteinous substance. The non-proteinous substance is know
Select all that are true/correct: Stable atoms have no vacancies in their outer shell. Hydrogen is more stable than carbon Helium is more stable than carbon Helium is more stable t
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