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Explain the Decolourizing Agent - Ziehl-Neelsen Method?
Acid alcohol - a mixture of 95% ethanol and 3% HCI - is used for decolourization. Before decolourization, smear is allowed to cool to make waxy substances hardened. As primary stain is more soluble in cellular waxes than in decolourizing solution, acid-fast bacteria retain the primary stain. However, all non-acid fast bacteria loose primary stain because of the lack of cellular waxes.
Explain biological aspects of nutrition Traditionally nutritionists have focused largely (or almost fully) on . However, we have realized over the years, that physiological bio
Define the Chemical Fixation Method? Here chemical fixatives containing ethanol, acetic acid and formaldehyde etc. penetrates the cell and inactivates and immobilizes cellular
Q. Why is it not correct to assert that the DNA self- replicates? The DNA is not completely self-sufficient in its duplication process because the replication does not occur wi
Evidence for Existence of Light and Dark Reactions The process of photosynthesis was known in its bare outline already at the beginning of this century. But the phenomenon wa
What is omnispective classification
Q. How is female gametophyte formed in angiosperms? Into the flower ovary there are megasporangia enclosed by a tegument having a small opening, the micropyle. Inside the megas
Ultrasonography: Ultrasounds are sound waves with a frequency of higher than the upper range of human hearing i.e., approximately 20,000 cycles per second (20 kilohertz).
Select all that are true: Plants do not have mitochondria, they have chloroplasts to convert the sun's energy into chemical energy via photosynthesis and do not need to make ATP us
Quantitative Methods - Therapeutic diets Quantitative Methods: These are often essential for constructing Lherapeutic diets. The two ways by which this could be done are as
Which of the following is a false statement regarding gel electrophoresis? A. An electric current is used in order move DNA fragments by a semi-porous gel. B. Fragments of n
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