The tangent plane at the point x=a, y=b is the plane that contains all the tangent vectors (at the point) of curves on the surface that pass through the point (a,b,f(a,b)). Another way to define it is to say that this is the plane through the point (a,b,f(a,b)) which is perpendicular to the NORMAL to the surface at that point. The NORMAL to the surface at a point is just defined as the direction perpendicular to all tangent vectors to the surface at that point. Therefore all we need to do to find the equation of the tangent plane is to find a normal to the surface at that point.
Apart from adenine (A), cytosine (C), guanine (G), thymine (T) and uracil (U), DNA and RNA also contain bases that have been modified after the nucleic acid chain has been formed. In DNA, the most common modified base is 5-methylcytosine (m 5 C). In RNA, there are many modified bases, including those contained in the nucleosides pseudouridine (Ï), dihydrouridine (D), inosine (I), and 7-methylguanosine (m 7 G).
Best Answer: The two structures are extremely similiar in that they are both nucleic acids with a sugar-phosphate backbone, attached to nitrogenous bases. RNA has ribose sugar groups, whereas the sugar groups in DNA have one fewer oxygen atom (therefore deoxyribose).RNA also has different base pairs-uracil (U) pairs with adenine in RNA, as opposed to thymine in DNA.RNA is usually found as a single strand (although not always), whereas DNA is generally found in a double helix structure consisting of two complementary strands joined with hydrogen bonds between bases.lso RNA uses Uracil instead of Thymine and pairs to Adenine. Otherwise they are primarily the same. The RNA can also form a double strand like DNA and the groups remain the same with the single exception, Uracil.