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Biological processes are regulated by many means; examples include the control of gene expression, protein modification or interaction with a protein or substrate molecule. Homeostasis : regulation of the internal environment to maintain a constant state; for example, sweating to reduce temperature
In biology, a biological life cycle (or just life cycle when the biological context is clear) is a series of stages of the life of an organism, that begins as a zygote, often in an egg, and concludes as an adult that reproduces, producing an offspring in the form of a new zygote which then itself goes through the same series of stages, the ...
The policy endorsed the adoption of a uniform pattern of school education across the country consisting of 10 years of general education program followed by 2 years of diversified schooling. The NCERT is also behind the formation of the National Science Talent Search Scheme (NTSS) in the year 1963.
Development is the process by which a multicellular organism (plant or animal) goes through a series of changes, starting from a single cell, and taking on various forms that are characteristic of its life cycle. [82] There are four key processes that underlie development: Determination, differentiation, morphogenesis, and growth. Determination ...
Fundamental processes of plant physiology include photosynthesis, respiration, plant nutrition, tropisms, nastic movements, photoperiodism, photomorphogenesis, circadian rhythms, seed germination, dormancy, and stomata function and transpiration. Absorption of water by roots, production of food in the leaves, and growth of shoots towards light ...
The process of photosynthesis provides the main input of free energy into the biosphere, and is one of four main ways in which radiation is important for plant life. [ 115 ] The radiation climate within plant communities is extremely variable, in both time and space.
These processes involve the release of Mg 2+ from its bound and stored states and its transport back into the vascular tissue, where it can be distributed to the rest of the plant. In times of growth and development, Mg 2+ is also remobilised within the plant as source and sink relationships change.
The microsatellite mutation rate in human male germ lines is five to six times higher than in female germ lines and ranges from 0 to 7 × 10 −3 per locus per gamete per generation. [3] In the nematode Pristionchus pacificus, the estimated microsatellite mutation rate ranges from 8.9 × 10 −5 to 7.5 × 10 −4 per locus per generation. [27]