DNA Full Form
DNA Full Form-What is DNA? DNA is a molecule made up of of two polynucleotide chains that coil around each other to form a double helix carrying genetic instructions for the development, functioning, growth and reproduction of all known organisms.
DNA Full Form
FAQs About DNA:
DNA is a string of nucleotides that carry genetic information about the creation of all life forms. DNA is a molecule composed of two polynucleotide chains that coil around each other to form a double helix carrying genetic instructions for the development, functioning, growth and reproduction of all known organisms and many viruses. DNA is in our cells and all other living things including the rocks on the planet. Genes are chemical codes Each gene contains a sequence of instructions, called a gene sequence, that tells a cell what proteins to make. The genes are transcribed into RNA (ribonucleic acid) and then into a protein. There are thousands of genes that encode for proteins.
A nucleic acid is a small molecule (about 6 ångströms in diameter) that is required for the synthesis of proteins. DNA is a nucleic acid DNA strands are called nucleotides and are made of A, C, and G. There are four different bases that are the building blocks of DNA. They are uracil, adenine, guanine, and thymine Each DNA base has an atomic number, which is a measure of the strength of bonding between its nucleotide nucleobases (purines or pyrimidines). It is a chemically rather simple way to store and transmit information since the code of DNA is directly transmitted to the next generation. A person's DNA holds a set of instructions that only contain the information to make new proteins, enabling them to function within the human body.
In the nucleus of our cells, there are about twenty different copies of our DNA, or on average about twenty times the number in the cell from which it was removed. (Some cells, called mitochondria, carry about a hundred times the amount of DNA as the nucleus of a cell.) These copies are like the blueprints for our own bodies. However, for cells that receive nutrients and oxygen from the outside, like those in our stomach, liver, intestines and immune system, the DNA contained in our cells is constantly being translated into proteins that provide the necessary instructions for them to function.
A basic, yet highly pertinent question, why do we have genes and not an instruction manual in DNA? We have genes because proteins have to be attached to genes to do any kind of work. In simpler words, proteins have to bind to DNA in order for a gene to work. So there is an added advantage of having DNA. It keeps genes in their correct position. Any change to the sequence of the genes causes deformity or failure and the patient becomes a vegetable. A mutation means a change in the sequence. There are two kinds of mutations, where the DNA itself does not change and it affects only one amino acid in the gene or it affects two or three amino acids but the structure of the gene remains the same, as mentioned by Nicola K.
DNA is the language of life that translates the processes taking place in the cell nucleus into the molecules that are transmitted through the rest of the organism. It acts as a scaffold that provides structural and genetic instructions for the cells to carry out the instructions encoded in the DNA. Through DNA damage, errors in the coding of DNA can be corrected by the synthesis of a new DNA strand. DNA has the ability to replicate and repair itself. These mechanisms are vital to the ability of cells to produce new cells and sustain and reproduce the body over time. Genome and Cellular Life DNA forms the genome, the building blocks of life. The DNA is arranged in the nucleus of every living cell.
DNA and ribonucleic acid are the building blocks of life. The information of DNA is recorded in proteins called ribonucleic acids. RNA also stores the information of ribonucleic acids. Over 90 percent of your genetic information is stored in DNA and only a few thousand nucleotides in RNA. All living cells store DNA and RNA in a way that makes them immune to their own destruction. DNA makes up the genetic code that controls the structure and function of a cell. DNA is the genetic blueprint of life, encoded in a script called the codon sequence that combines the five building blocks of nucleotides (A, C, G, T and U). Each codon combines three of these building blocks into a specific sequence for the protein that will be produced.