Category: SCIENCE VIDEO

In this Video, Dr. Preetpal kaur explains about chloroplast, its structure, components and its functions. It performs its function (photosynthesis) through light reaction and dark reaction.

In this Video, Ms. Jyoti Kumari in Biyani Group of Colleges explain about the general structure of DNA. DNA is made up of long polynucleotide chains. A nucleotide has three components i.e. A nitrogen base, A pentose sugar, A phosphate group. Nitrogenous base is linked to the pentose sugar through N-glycosidic linkage to form nucleoside but when phosphate group is linked to this nucleoside through phosphodiester linkage a nucleotide is formed and when many nucleotides are linked, then a polynucleotide chain is formed. Base pairing confers a very unique property to the polynucleotide chain.