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.
See Fig. 1. The nucleotides within each strand are held together by the phosphodiester bonds between the 5' carbon of one nucleotide and the 3 ' carbon of the adjacent nucleotdie. These strong covalent bonds form the the glue that holds the sugar/phosphate backbone together and thus act to keep each strand together.