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Q. Explain about Gastric ulcers?
Gastric ulcers occur in the lesser curvature of the antrum of stomach. A gastric ulcer appears to be caused by reflux of bile and factors that disrupt the mucosa barrier permitting the hydrogen ions to diffuse into the mucosal tissue where they cause damage. The damage causes cell destruction and subsequent ulceration (due to defect in pyloric sphincter). NSAID dramatically increase the risk of ulcers and is related to the systemic inhibition of prostaglandin production. Thus results in impaired defense against acidity by the gastric mucosa. Another pathogenetic factor is H. Pylori infection and the resulting impaired mucosal defence.
Antibodies of dissimilar specificities, which react to the same antigen, are known as polyclonal antibodies.
What is the main external morphological feature that differentiates platyhelminthes from other worms (nematodes)? Platyhelminthes are also called as flatworms because they are
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According to the Mendel's law the phenotypical characteristics would be determined by pair of factors (alleles) that separate independently in gametes. What are the major types of
Suppose that there are six pairs of alleles which control height and that every dominant allele adds 5cm to the stature. Assume also that the average height of an adult (with equal
Q. How many chambers do the mammalian heart and the bird heart have? Concerning temperature maintenance what is the benefit of the double and complete circulation of these animals?
Q. Give some Chlorine-releasing compound? Of all the chlorine - releasing compounds, hypochlorites have been the choice disinfectants used in food industry. The hypoc
Q. Explain Genetically Modified Organisms? Techniques that use gene modification through (a) recombinant DNA technology and (b) cellular techniques of introducing DNA into an o
Q. Why is a man’s voice usually lower than a woman’s voice? Pitch of the voice-how low or high it sounds-it depends on the length, tension and thickness of the vocal cords. As
What is oxidative phosphorylation? Oxidative phosphorylation is the process by which ADP is phosphorylated by Pi to ATP in the respiratory chain.
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