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Enzyme Synthesis
Nitrate assimilating system in general is known to show increase in nitrate uptake system and nitrate reductase system in the presence of nitrate. In other words, nitrate assimilatory system is induced by the presence of nitrate. Similarly, cells or organisme assimilating NH3 as nitrogen source show lack of nitrate assimilatory system. Such control of nitrate is called repression control. Thus nitrate is an inducer while ammonia is repressor of nitrate assimilatory system. Red light is known to enhance synthesis of nitrate assimilatory system and this light effect is mediated by well-known photomorphogenic pigment called phytochrome.
List the short-term and long-term effects of forest destruction (a) on hillsides, (b) in the tropics. (a) Deforestation on hillsides exposes the soil to erosion by rain and l
Which terrestrial vertebrate group is extremely rare in deserts? Amphibians are terrestrial vertebrates extremely rare in desert environments (although there are a some species
Enumerate the term - Clinical neuroscience Clinical neuroscience concerns the study of clinical populations both to well understand neuroanatomy and to test psychological theor
Why do some trees lose their green color in the autumn? In autumn days become shorter and nights longer therefore there is a reduction of the photosynthesis rate and some plant
Q. What is Subxiphoid Short Axis Sweep? To obtain the subxiphoid short axis view transducer should be rotated by 90 degree clockwise, fi-om the previous position so that p
Removable soft tissue-borne partial dentures have one of the lowest patient acceptance rates in dentistry. Those patients wearing the partial dentures often exhibit greater mobilit
What is the difference between the concepts of food chain and food web? The chain theory is a theoretical model to study the energy flux in ecosystems. In fact, in an ecosystem
F o wl pox Fowl pox is a contagious disease of birds, caused by a member of family Poxviridae, characterized by wart-like nodules on the skin and diphtheritic necrotic membra
Define Fluid and Electrolytes requirements in elderly? Care lo be taken that adequate fluid be given to the elderly. If patient is unable to take the required daily needs, then
what are some physical features of the ocean
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