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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.
If neurons are exposed to a chemical agent that prevents the NA+ channels from opening, what would happen to the neuron? What would happen if the K+ channels were inhibited? What d
Which terrestrial vertebrate group is extremely rare in deserts? The Amphibians are terrestrial vertebrates very rare in desert environments (although there are a few species a
Hazards Is an event whether natural or man-made that has potential for causing injury, loss of life and damage to the property or the environment. It can be grouped into two broad
What is Dip Stick Test It is a rapid method of detection of Ketone bodies which you can perform easily. Plastic strips impregnated with a buffered mixture of sodium nitropru
a) Mention the name of the causal organism, symptoms and the mode of transmission of the disease Amoebiasis b) Mention the property that enables the explants to restore into a n
Excluding the effects of cardiac output and hormones, describe the other factors that may affect blood pressure and blood flow in a middle-aged man who is exercising in an aerobics
Q. How does the organism understand that a clotting process must begin? When there is some tissue wound with injury of blood vessel the platelets and endothelial cells of the w
EXCRETIO N IN EARTHWORM - Main organs are nephredia, pharyngeal, integumentary & septed nephredia. Main are septal nephredia situated on septa.Nephrostome present. Body
What is arterial switch operation explain briefly? Arterial Switch Operation: Switching the Great arteries to restore the normal Ventriculoarterial connections. The coronary
Explain Temperate Deciduous Forests-Taiga and tundra? Temperate deciduous forests are typified by the type of forests predominantly found in the eastern and northeastern Unit
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