Topoisomerase DNA is not just a straight ladder — in the cell, it’s supercoiled, twisted, and packed tightly. Whenever DNA is opened (for replication, transcription, or repair), the double helix Read More …
Topoisomerase
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Structure and Function of DNA
Introduction DNA, or Deoxyribonucleic Acid, is the fundamental molecule that carries genetic information in all living organisms, from the simplest bacteria to complex plants and animals, including humans. It is Read More …
Anticoagulants
Introduction Anticoagulants play a crucial role in ensuring that blood samples remain in a fluid state for testing, storage, and transfusion. Different anticoagulants are used depending on the test or Read More …
Preparation of 200 mL of 70% (v/v) ethyl alcohol
Introduction In histopathology, the use of alcohol solutions is crucial for preserving and fixing biological tissues. Alcohol, specifically ethyl alcohol, is widely used for tissue fixation, dehydration, and in various Read More …
Introduction to Histopathology
Introduction Introduction of Histopathology is the branch of pathology involving microscopic examination of biological tissues to observe the appearance of diseased cells and tissues in fine detail. It is a Read More …