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Explain about the Cyanocobalamin (vitamin B12)?
Vitamin B12 (cobalamin, cbl) is a unique vitamin in human nutrition, since its malabsorption leads to the fatal syndrome of pernicious and megaloblastic anaemias with demyelinating lesions of the central nervous system. The structure of vitamin B12 is shown earliar. As you may have noticed, vitamin B12 is the largest of the B complex vitamins. It consists of a corrin ring made up of four pyroles with cobalt at the centre of the ring. There are several vitamin B12-dependent enzymes in bacteria and algae, but no species of plants have the enzymes necessary for vitamin B12 synthesis.
Explain the terminology Niche ? The term niche is used often in ecology, and its meaning has been defined and interpreted in various ways over the years. An organisms niche has
Define Steps in the Development of Exchange List? As mentioned above, when we group together similar food items so that each supplies a constant amount of a particular nutrient
What sources of water are (a) most likely, (b) least likely to contain pathogenic bacteria? (a) Water most likely to have pathogenic bacteria will be that which receives u
Q. Do the phosphate and the pentose groups give heterogeneity or homogeneity to the nucleic acid chains? What about the nitrogen- containing groups? Supported by that, which of tho
If a person is heterozygous for the 32 allele of the CCR5 gene, how many of the four daughter cells produced by meiosis will have the 32 allele?
What do you Understand by Amphid? Unique to the nematodes, these paired sensory structures are located on the sides of the head. An external pore leads to an inner chamber and
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Q. What are the symptoms of diverticulosis? Depending on the site of diverticula the symptoms may appear. It occurs most often in sigmoid colon and frequency increases with age
What is Metachronal wave? Describe. During the coordination of the ciliary movement, bands, or groups of cilia, are at different stages of their beating pattern, and this creat
Is it expected that a change in the primary, in the secondary or in the tertiary structure of a protein will produce more functional consequences? Any change of the protein str
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