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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.
Q. During which meiosis division does ploidy reduction take place? And Does it ploidy reduction occur in mitosis? In the cell division by meiosis ploidy reduction occurs in mei
Why does bark often break and die naturally? Bark is the mature periderm of the branches, stem and roots. It breaks and dies when these structures grow and thus the peridermal
Monitoring of risk management Assessment of effectiveness of measures taken, and review risk management and/or assessment, as necessary. The outcome of the risk evaluation
Eye Drops Medication is instilled in the form of drops or ointment. Purpose To dilate pupil e.g. Atropine 1 per cent, drosyn 5 per cent or 10 per cent To c
Q. Why does the urinary volume increase when alcoholic beverages are ingested? Alcohol inhibits the ADH (antidiuretic hormone) secretion by the hypophysis and Low ADH reduces t
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Biotechnology: Biotechnology is, perhaps. best defined as the industrial utilisation of biological systems or processes. In sense, therefore, biote(biology ha existed fo
Explain the role of cuvier in animal taxonomy? Cuvier (1769-1832) was critical of Lamarck's evolutionary concept which thereafter remained in oblivion for half a century. Cuvi
Advice on Follow up The patient should adhere to the follow-up schedule strictly. Generally, one week after discharge, then one month and then 3 to 6 months interval, the
Which of the following statements about hemoglobin and myoglobin structure are true? Select the five true statements. 1. By itself, heme is not a good oxygen carrier. It must be
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