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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 are gene interactions? What are the three main types of gene interactions? The Gene interaction is the phenomenon in which a given phenotypical trait is conditioned by two
Clathrin-coated pits and vesicles are included in both the endocytosis of material at the plasma membrane and the exocytosis of proteins from the Golgi apparatus. Electron
Exon are those parts of a genomic DNA sequence which will be represented in final, mature mRNA t A contiguous segment of the genomic DNA which codes for a polypeptide in the gene.
Q. Microorganisms on basis of oxygen requirement for growth? On basis of oxygen requirement for growth: - Obligate Aerobes: Require oxygen for growth and multiplication e.g
Explain Food Effects on Drug Excretion? Food and nutrients can alter the re-absorption of drugs from the renal tubes. Urinary acidity affects drug re-absorption from the renal
In these disinfectants, iodine is incorporated along with a detergent. They are not as effective as hypochlorites against bacterial spore but also get inactivated in the pres
Define species according to the biological species concept. What two problems often make this definition impractical?
Hepatitis B Vaccination against hepatitis B (Engerix-B - GlaxoSmithKline; Recombivax HB - Merck) is now a routine pediatric immunization in the US. It is recommended for previo
What purpose does sleep serve for the brain? A. We don't yet know full answer to this fundamental question however neuroscience is providing intriguing clues. It's increasingly
Give the introduction to Congenital Heart Disease ? The past 3 or 4 decades have witnessed a revolution in pediatric cardiac sciences. A number of conditions previously conside
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