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The lac operon is an brilliant example of negative control or negative regulation of gene expression in which they bound repressor stops transcription of the structural genes. The Positive control or positive regulation of gene expression is when the regulatory protein binds to enhances and DNA the rate of transcription. In that case the regulatory protein is called as an activator. The CAP or CRP included in regulating the lac operon is a good instance of an activator. Thus the lac operon is subject to both positive and negative control.
After ovulation:- (a) what structure replaces the Graafian follicle (b) what hormone does it produce? (a) After ovulation, the follicle is replaced by the cor
Q. Function of Dopamine in consciousness? An increase in dopamine activity produces an increase in wakefulness. Dopaminergic neurons in the ventral tegmental areas are constant
How does chewing food help to speed up digestion? Chewing reduces food to portions small sufficient to be swallowed and enhances the surface area of the food for digestive enzy
Mutations are the only kind of variability generating mechanism in prokaryotes and asexually reproducing organisms. But in eukaryotes where sexual recombination occurs, even in one
Procedure for Preparation of Selective and Differential Medium Now prepare the MacConkey agar medium following the steps given herewith: 1. Weigh and dissolve all ingredient
Transcription in eukaryotes, a much more complex procedure than in prokaryotes. In the eukaryotes, translation and transcription take place in several cellular compartments that ar
Factors Influencing Lipid Oxidation Food lipids contain a variety of fatty acids that differ in chemical and physical properties and also in their susceptibility to oxidation.
Dextrin Polymers of D-glucose, formed due to partial hydrolysis of starch by enzymes.
Gregor mendel was an austrain augustianian monk; his work most notably showed that. a. Alleles segregate during meosis b. Capital alleles are dominant c. The genetic material is pa
examples of gametes
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