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Define Most Probable Number (MPN) Method?
The MPN method is like agar shake tube method where no agar is used. The dilutions of the microbial suspension are made in liquid medium till the final tube in a series shows no growth. By repeating this process several times pure culture can be obtained. The method is used for estimation of number of microorganisms in foods, waste water and other samples.
In earthworms, when the ovaries mature, the clitellum secretes a viscous substance in the form of a girdle. This girdle hardens in to a cocoon around the clitellum. The ova are dis
Budding - Types of Asexual Reproduction In reproduction through budding, small groups of cells form buds in some part or parts of the parent animal. The bud grows, differentia
Mitochondria, which fuel life's processes in all cells, uses nutrients from digested food and oxygen which has diffused across cell surface. In freshwater protozoans water expulsio
Q. Why can be the consumption of molecular oxygen indicates the metabolic rate of aerobic organisms? Molecular oxygen (O 2 ) consumption has direct relation to the cell metabol
S almonella i n f e c tions The term salmonellosis is a used for several Salmonella infections of humans and animals caused by Salmonella Enterica and S. Bong
what are the characteristics of algae?
What is the structural representation of a carboxyl group? Carboxyl groups have a carbon attached to single hydroxyl group by a simple bond and to one oxygen by a double bond.
Fertilisation: Fertilisation is the process of fusion of male and female gametes. For fusion of male and female gametes, pollen grains have to reach the surface of the stigm
Spina Bifida Occulta There is no protrusion of the meninges but the vertebrae are bifid. There are three components of the spina bifida occulta. a) Vertebral- there is
The nucleus comprise the genetic information of cell. In addition to activities which maintain the cell, nucleus creates copies of itself for new protozoans by either asexual repro
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