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Signal transduction occurs when an extracellular signaling molecule activates a cell surface receptor. In words, this receptor change intracellular molecules changes a response. There are two levels in this procedure: the signaling molecule activates a particular receptor protein on the cell membrane. A 2nd messenger transfers the signal into the cell and eliciting a physiological response. In either level the signal can be amplified. Whereas, one signalling molecule can cause several responses. Gene activations and metabolism alterations are instances of cellular responses to extracellular stimulation which requires signal transduction.
What is heterospermy?also give its significance?
Physical Environment and Genetic Physical Environment : Safe water and clean air, healthy workplace, safe houses, communication and roads all contribute to good health. The
Q. Write the definition of counselling? Definition of counselling "A process of helping or enabling a person / persons to solve certain interpersonal, emotional problems and
Evaluate the Moisture Requirement - The Concept of Water Activity We already know that moisture is one of the important factors for the survival of living species. As suc
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how is water lost from respiratory surface
The original DNA sequence when ,transcribed and translated would yield five successive valine residues. But the altered sequence would correspondingly read one aspartate and four s
Etiology Fevers can be caused due to 1. Internal (endogenous) factors: This could be caused within the body. Examples are antigen-antibody reactions, malignant cancer, graf
Gas Exchange Gill surface area must be large enough to provide adequate exchange of gases. Therefore, highly active fish have largest relative gill area. Figure compares highl
Explain about the Spinal Trauma? Spinal trauma or spinal cord injury, commonly clue to accidents, fills, sports injury can result in serious disabling consequences. The spinal
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