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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.
A population has 350 births per 1000 individuals and 320 deaths per 1000 individuals. 1. what its population growth rate? 2. Intrinsic rate of increase? 3. Doubling time? 4. Derive
Just definition
A vertical section of an ovule is shown below. The correct ploidy levels of the four structures P, Q, R and S respectively are: a. n, 2n, n, n b. 2n, n, n, n c.
How much Minerals should be taken for management of obesity? A diet high in sodium may promote retention of fluid in the body. Moderate restriction in the use of common/table s
Chromatin is uncondensed nuclear DNA, the typical DNA morphology in interphase (the phase of the cell cycle in which the cells is not separating itself). In this phase of the cell
Define about the Photometry - colorimetry? Photometry is the measurement of the luminous intensity light or the amount of luminous light falling on a surface from such a source
Pollution - Environmental Pollution Pollution refers to any undesirable change in the physical, chemical or biological characteristics of our environment, i.e. air, water and
Insect killing jar Secure a wide-mouth glass jar with a screw top or single which closes very tightly. Place a wad of cotton in the bottom and cover it with a round piece of ca
Explain Procedure for Temporary Mounts of Fungal Culture? (1) Observe mould culture for the colonial appearance and colour. Also observe the underside. (2) Label the clean,
Preliminary treatment of implant therapy It is important to ensure a healthy oral environment before going ahead with implant procedure. The treatment needs to be initiated in
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