Boti is a cutting instrument, most prevalent in Bengal, a region in eastern South Asia which is now divided between the Indian states of West Bengal, Tripura, and Barak Valley of Assam and the independent country of Bangladesh. A boti is a long curved blade that cuts on a platform held down by foot. Both hands are used to hold whatever is being cut and move it against the blade. The sharper side faces the user. The method gives excellent control over the cutting process and can be used to cut anything from tiny shrimp to large pumpkins.
Medical Definition of PHOSPHODIESTER BOND. : a covalent bond in RNA or DNA that holds a polynucleotide chain together by joining a phosphate group at position 5 in the pentose sugar of one nucleotide to the hydroxyl group at position 3 in the pentose sugar of the next nucleotideâcalled also phosphodiester linkage.weet. : a covalent bond in RNA or DNA that holds a polynucleotide chain together by joining a phosphate group at position 5 in the pentose sugar of one nucleotide to the hydroxyl group at position 3 in the pentose sugar of the next nucleotideâcalled also phosphodiester linkage.
1. The DNA double helix is held together by two types of bonds, covalent andhydrogen. Covalent bonds occur within each linear strand and strongly bond thebases, sugars, and phosphate groups (both within each component and betweencomponents).It is the 3Â´ -OH group thatis required to create the next phosphodiester bond.) The RNA is subsequentlyremoved and replaced with DNA so that no gaps exist in the final product. 4. Helicases are enzymes that disrupt the hydrogen bonds that hold the two DNAstrands together in a double helix.