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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.
Q. What is the difference between the beta-sheet and the alpha-helix protein conformations? Beta-sheet and Alpha-helix conformations are the two main types of secondary structu
Reducing Pollution - Conservation of wildlife As you already know, pollution of various kinds has affected the survival of living beings, particularly the wildlife in various
Q. Why is carbon dioxide concentration a limiting factor of the photosynthesis process? And When the carbon dioxide concentration is increased indefinitely is photosynthesis also i
Explain about chthalamus The realised niche of Chthalamus is reduced from its fundamental niche and it is limited to the upper tidal zone Lower limits Out-competed
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EGG S OF FROG This egg is round & its diameter is of 1-2 mm. It is mesolecithal & has distinct animal pole & vegital pole. The nucleus is found in the centre of the anim
Q. Symptoms of chronic gastritis? These include anorexia, chronic fatigue, and feeling of fullness, belching, vague epigastric pain, nausea and vomiting and passage of black ta
Explain the differance between savanna and desert? Savanna : Savanna is characterized by relatively low rainfall and pronounced dry seasons. This type of climate produces a b
Why are vaccines made of the own disease agent or of fragments of it? The goal of vaccines is to artificially persuade a specific primary immune response (and the consequent fo
THE RAPEUTIC NURSE: Development of therapeutic nurse patient relationship is the basic requirement of nursing. A helping relationship in nursing may be explained as an in
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