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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.
Flow cytometry is an analysis of biological material by detection of light- absorbing or fluorescing properties of cells or subcellular fractions (that is chromosomes) passing in
Describe the factors that affect cardiac output in a female athlete who is speed skating toward the finish line in an Olympic race.
What happens if platelets aren''t present in blood?
Craninal nerves: Cranial nerves take their origin from different areas of brain Some of them are sensory, some are motor and a few are mixed nerves. There are 12 pair
Define and compare bone modeling and remodeling Bone modeling is a surface-specific activity (apposition or resorption) that produces a net change in the sie and/or shape of a
Name the two hormones produced by the pancreas and say (a) in what circumstances, (b) in what way, they adjust the glucose concentration in the blood.
classification of invertebrate
Q. Determine the sucrose content in a sample of honey? This activity will help you to: • estimate the non-reducing sugars and total sugars in a sample of honey, • check t
Q. Illustrate Omega Taxonomy? After synthesising a basic classification, the taxonomist can attempt to improve upon it. Therefore, the observed facts are interpreted in Omega t
We now understand that mutations that cause the inhibition of apoptosis are found in tumors. Because proliferation itself is not induced by the inhibition of apoptosis, explain how
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