v Foreword A study of the structure and function of nucleic acids is needed to beable to understand how information controlling the characteristics of anorganism is stored in the form of genes in a cell and how these genes aretransmitted to future generations of offspring.ucleotides can be regarded as the building blocks for the largernucleic acid molecules, DNA and RNA. Nucleoside di-and triphosphates One or two additional phosphates can be added to the first phosphategroup of a nucleoside molecule (a nucleoside monophosphate, NMP) bymeans of a pyrophosphate linkage.
From Wikipedia, the free encyclopedia. In computing, a stack trace (also called stack backtrace or stack traceback) is a report of the active stack frames at a certain point in time during the execution of a program. When a program is run, memory is often dynamically allocated in two places; the stack and the heap.
In computer science, a stack or LIFO (last in, first out) is an abstract data type that serves as a collection of elements, with two principal operations: push, which adds an element to the collection, and pop, which removes the last element that was added.n example is top of stack, or  peek , which observes the top-most element without removing it from the stack. Since this can be done with a pop and a push with the same data, it is not essential. An underflow condition can occur in the stack top operation if the stack is empty, the same as pop.