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Explain briefly about the selenium Toxicity?
There is a narrow margin between the beneficial and harmful intakes of selenium. The level at which selenosis occurs is not well-defined but threshold for toxicity appears to be 850-900 μg per day. Symptoms of chronic toxicity include brittle hair and nails, skin lesions with secondary infections and garlic odour in the breath. Chronic selenium poisoning in people is characterized primarily by loss of hair and changes in finger nail morphology. In some cases, skin lesions may occur.
Define the disease - Marcus Gunn Pupil (RAPD) Relative Afferent Pupillary Defect occurs in a pupil of an eye that is blirld from optic nerve disease. When light is shifted to t
The plasma membrane consists mainly of: 1. Phospholipids embedded in a protein bilayer 2. Proteins embedded in a phospholipid bilayer 3. Proteins embedded in a polymer of
Q. Association of Fibrinogen With Cardiovascular Risk Factors? Ans. Fibrinogen, a large glycoprotein made mostly in the liver, is a clotting factor that activates thrombin
what is exonephric
Arteries - Circulation The arteries deliver blood from the heart. Figure shows the structure of arteries and the different layers of the vessel wall. The thick walls of these
Which of the following best describes why Okazaki fragments are not observed in PCR? A. DNA primase is used for the entire reaction therefore eliminating the production of Okaz
Q. How different are fecundation in chondrichthyes and in osteichthyes? In chondrichthyes fecundation is internal by resources of copulation. In osteichthyes fecundation genera
Facilitation Model - Models of Succession This is considered as the classical model of succession. It is based on the assumption that species of a previous stage are replaced
Definition of osmosis A) The best explanation of osmosis is 'The movement of water from a dilute solution to a concentrated solution across a partially permeable membrane'.
INCOMPLETE DOMINANCE (1:2:1) Sometimes two genes of allelomorphic pair do not show dominant-recessive relationship, but when present simultaneously (or come together), they sho
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