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Explain the Selective Media - Culture Media?
It is used to select specific groups of bacteria by favouring the growth of desired bacteria and inhibiting the growth of undesired. Selection can be based on pH, water activity, nutritional content or presence of inhibitors. Example: Crystal violet, bile salts etc. inhibits gram positives while NaN3, thallous acetate, lithium chloride inhibits gram negatives. Example: oxytetracycline glucose yeast extract agar is selective for yeasts and moulds.
Normal 0 false false false EN-IN X-NONE X-NONE MicrosoftInternetExplorer4 What are the two mai
Q. What are the target organs upon which glucagon and insulin act? Glucagon mainly acts upon the liver and Insulin acts generally upon all cells. Both also act upon the adipose
Define the effect of niacin deficiency on Skin? Dermatitis is the characteristic feature of the' disease, It is symmetrical in distribution. In early stages, a bright red eryt
Gonial Apospory and Somatic Apospory Gonial Apospory There is no meiosis. The megaspore mother cell enlarges; a small vacuole appears above and below the nucleus. The c
Define Regents for Estimation of Vitamin C - Colorimetric Method? 1. 2, 4 dinitrophenylhydrazine reagent - Dissolve 2 g of dinitrophenyl hydrazine in 100 ml of 9N sulphuric aci
Explain Deficiency diseases due to vitamin C? Vitamin C deficiency in human's results in the disease called scurvy, whose symptoms include hemorrhaging (especially in the gums)
What is the relationship between the concept of reproductive isolation and the concept of species? The Reproductive isolation is an important concept because it defines the con
Breifly describe the Menstrual Cycle? Each month during a female's reproductive years, the hypothalamus secretes a hormone that stimulates the anterior lobe of the pituitary gl
Interactions between minerals Copper deficiency has been identified as a serious problem for grazing ruminants. A deficiency may be due to low concentrations of Cu in forage a
Explain Food plan for an anaemic pregnant lady? Justification of the Plan: The plan is for an anaemic pregnant lady, from a lower socio-economic level and doing moderate lev
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