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Define Light Source of Microscope?
It is either mirror or electric illuminator present at the base. Identify the mirror in Figure. Some microscopes have reversible mirror with one side flat and other concave.
Concave side of the mirror is used for sunlight and its flat side is used for artificial light, e.g., tungsten lamp. Other microscopes have built in light source.
Biological energy: Whenever matter is broken down its chemical energy is released as heat. Non biological system can utilize this heat energy directly in the performance of work,
Which of the following statements about how B and T cells recognize antigen are true? a. B cells only recognize antigen presented by class I or class II MHC molecules. b. Both cell
Shapes: Nightingale Ward In the 1940s, this traditional nursing unit was based on the long rectangle pavilion type ward and self-contained unit. This concept is establis
Vivipary - Development Biology In flowering plants the seed or fruit generally is dispersed and germination occurs when the conditions are congenial for growth. However, in so
What is the relation between the concepts of chromatin and chromosome? Are euchromatin and heterochromatin part of chromosomes? Every filament of chromatin is a complete DNA mo
What is a burette and how is it used? A burette is a uniform-bore glass tube with fine gradations and a stopcock at the bottom, used particularly in laboratory procedures for a
Congenital Discrete Subvalver Stenosis : The abstraction could be fibrous or fibro muscular. It could be anywhere from just below the aortic cusps upto the level of the free edge
Occurrence of Biotin Biotin occurs in nature very likely in all living cells, although usually in minute concentrations. In animal organs and in yeast, biotin is mainly cont
Cell Interactions and Ooplasmic Determinants Microscopic observations of egg cytoplasm suggests that it is not homogenous in appearance. The observable variations in the cytop
Oxygen - Factors Influencing Functions of Nitrogenase Oxygen is a strong inhibitor of N 2 -fixation because it blocks both the synthesis as well as the activity of nitrogenase
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