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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 acid and allow to stand overnight. Mix and use.
2. 5% thiourea solution - Dissolve 25 g of thiourea in 500 ml of distilled water.
3. 9N sulphuric acid
4. 85% sulphuric acid
5. 0.6% copper sulphate
6. Colour reagent or Dinitrophenylhydrazine - thiourea - copper sulphate (DTC) reagent - Mix
7. 5% trichloroacetic acid (TCA)
8. 5% metaphosphoric acid in 10% acetic acid solution - Mix 1000 ml of 5% metaphosphoric acid and 500 ml of 10% acetic acid.
9. Ice for cooling.
Q. Source of the bacteria of Salmonellosis? The initial source of the bacteria is the intestinal tract of birds, reptiles, farm animals, humans and occasionally insects. As int
what are alleles
Germ Layers - Metazoa The infolding of the blastoderm of the blastula forms a gastrula with two or more layers. The outer layer is the ectoderm' and the endoderm lines the inn
Which are the germ layers present in cnidarians? Which tissues of the animal do they originate? These beings there ectoderm and endoderm, two germ layers. Animals with only two
What is a recessive gene? With the birth of a child, it gets its genes from both parents. Some genes 'override' other genes. Using hair color as instance: If single parent i
Preliminary treatment of implant therapy It is important to ensure a healthy oral environment before going ahead with implant procedure. The treatment needs to be initiated in
Mention causes of implant failure due to improper implant selection. Implant selection errors : a) Improper implant type in improper bone type. b) Improper length, width
Define Rheology and syneresis Rheology: the science of the deformation and flow of matter. It is the branch of physics concerned with the flow and change of shape of matter,
What are the final digestion products of (a) protein, (b) fat, (c) starch? a) Proteins are digested to amino acids, b) fats are digested to fatty acids and glycerol,
TYPES OF ASEXUAL REPRODUCTION 1 . Binar y fission - Amoeba 2. Multipl e fission -
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