What is nucleic acid?

6 These instructions are nucleic acids. All organisms with more than one cell use nucleic acid called deoxyribonucleic acid (DNA) and less complicated, such as viruses, using ribonucleic acid (rna.) Each of these nucleic acid It is that the sequence reads, which is two nuclear forms. least complicated. It is the only spring. DNA, on the other hand, pair with another spring spring, so it is present in the cells as a two -thirds structure in the spiral shape.

Each nucleic acid is a chain that consists of many building blocks, one by one, called nucleotides. These nucleotides are held together by chemical forces at each end of the block. Only four different nucleotides form DNA. These are adenin (a), guanine (g), thymin (t) and cytosine (C.) RNA also has only four nucleotide blocks, but instead of thymine (T) has uracil (u.)

The living thing holds many nucleic acid instructions in its cells. Each cell can read a string of instructions and create appropriate products. Because every organism needs to produce a lot of different products, the nucleic acid chain contains many small parts of the instructions. These slices are called genes and the cell generally reads each gene as instructions for one particular product.

It is a sequence of nucleotides that matters with nucleic acids, and complicated instructions do not need more than four nucleotides. For example, the human genome has 3.2 billion nucleotides in each chain. Smaller organisms tend to have shorter nucleic acids, such as Bacteria hemophilus influenza to 1.8 million bases on the spring.

Analogy is the fact that English language has 26 letters but English-contract can put all these letters together, in different combinations of words and have foldsThe conversation. A very simple example is when someone says "pots". The same letters otherwise mean something completely different; "BUS STOP." So in another example, when the cell reads a gene with a sequence that begins CCTTGGAA ...., it creates a different cell product that begins Aattggaa ...... Although sequences are similar. Nucleic acid sequences in genes must be relatively accurate, otherwise the body may not be able to create the right product.

In principle, nucleic acids work like a computer that organizes a cell. They also provide instructions that the cell must replicate. Without nucleic acid, cells or organism, they cannot build another version of themselves. Only those forms of life that can replicate can survive to the next generation. Therefore, nucleic acids are present in every form of life on Earth.