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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.
Air pollutants - Effects on plants Particulate matter such as cement, coal, petro coke, dust, and fly-ash screen the light and thus change its quantity and quality. Dust plug
State in brief about Gullstrands Theory A change in the lens is controlled by the balance between elasticity of the lens capsule and the pull of zonules. It is believed that on
Does thermal inversion occur in the winter or in the summer? Pollutant low altitude thermal inversion happens in the winter. In this period of the year the sun heats the soil l
Phototherapy Unit Principle Photoisomerisation and photo-oxidation changes indirect bilirubin into water soluble substance. Operational Instruction Adjust
classification?
Chiasmata formation takes place where crossing over occurs. Here Chromatid segments are exchanged which contributes to genetic variability. The 46 homologous chromosomes arrange at
What is the Importance of vitamin b2 As a prosthetic group of the flavin enzymes, vitamin B 2 is involved in the reactions of almost all nutrients of plants and animals. They
Structure of Blastula The structure of blastula turns into modified in several animal groups. The changes are related to the amount of yolk deposited in the egg, as you will s
Approaches to Neuropsychological Assessment Probably the most useful model of neuropsychological interpretation is described in Reitan and Wolfson's (1993) four approaches to a
in sericulture industry do which stages of silkworm weaver buy? why do they do so?
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