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Galvanotaxis - Modes of Cell Movement
Galvanotaxis considers to the movement of cells in response to a potential variation between cells. It is suggested that there are voltage differences among embryonic regions that could play an important role in morphogenesis. Minute electric fields of the order of 10 to 100 mv/mm appear to be enough to alter the direction of nerve growth. Nuccitelli and Erickson (1984) displayed that embryonic chick fibroblasts migrate toward negative pole when cultured in small steady electrical field. Early chick embryos, regenerating blastema of amphibians and moth ovaries while transportation of yolk proteins occurs, arc some of the structures where large electric currents have been detected.
general features of protochordates
Q. What is the criterion used to classify hosts as intermediate hosts or as definitive hosts? The criterion used to categorize hosts as intermediate hosts or as definitive host
how ova is produced
Candidiasis Candidiasis (Moniliasis) is a disease of man, animals and birds and is caused chiefly by Candida albicans. Crop mycosis (thrush) of poultry is caused by C. albicans
Clostridium botulinum is an anaerobic, Gram-positive, spore forming, rod shaped bacteria that produces the potent neurotoxin. The organism and its spores are widely distributed in
Explain Ventilation (NIV)? This refers to the use of mechanical ventilatory support without the use of an endotracheal tube. NIV may be by the application of a continuous posit
What is tuberculosis? How is the disease transmitted? Is there treatment for tuberculosis? Tuberculosis is a disease caused by the Mycobacterium tuberculosis, bacteria which at
The DNA of a bacterial cell,such as Escherichia coli is a circular double-stranded molecule often referred to as the bacterial chromosome. The circular DNA is packaged into
Hemicellulose In plant cell walls, the most abundant compound present is α-cellulose with long fibers embedded in a matrix of cementing compounds (matrix polysaccharides). Thes
Define Procedure for Testing the Presence of Urea in Milk? 1. To 0.5 ml of milk add 0.5 ml of DMAB solution (prepared by dissolving 0.4 gm of p-dimethyl amino benzaldehyde po
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