Nucleic acids :
What is nucleic acids and it’s types?
Nucleic acids types and importance :
Nucleic acids types and importance is listed here briefly by the way you can clear your doubts about it.So first we start with nucleic acids.
Nucleic acids are essential components of every living cell. They are genera long chain molecules made up of nucleotides. Each nucleotide consist of three components, nitrogenous base, a pentose sugar and a phosphate group.
Types of nucleic acids :
1. Deoxy Ribonucleic acid DNA
2. Ribonucleic acid RNA
Deoxyribonucleic acid DNA:
DNA consist of Deoxy sugar. It’s structure was discovered by J. Watson and F. Crick in 1953. It is long double stranded molecule consisting of two chains wrapped around each other in a double helix form.
DNA A permanent storage :
For genetic information DNA is the permanent storage place in the nucleus of a cell.
It carries and store all genetic information of the cell. It passes these informations as instructions from generation to generation how to synthesize particular proteins from amino acids.
Instructions are genetic code of life:
These instructions are genetic code of life. They determine whether an organism is a man or a tree or a donkey and whether a cell is a nerve cell or a muscle cell. When an error occurs in any of the step involved in expressing the genetic information contained in DNA a genetic disease may occur.
DNA carries genes that controls the synthesis Of RNA and passes the genetic information to RNA at proper time.
Sequence of nitrogenous base in DNA :
The sequence of nitrogenous base in DNA determines the protein development in new cells. The function of the double helix formation of DNA is to ensure that no disorder take place.
Ribonucleic acid RNA :
It consist of ribose sugar. It is a single stranded molecule. It is responsible for putting the genetic information to work in the cell to build proteins. It’s role is like a messenger.
Synthesis of RNA:
The shyntesis of RNA is carried out by DNA to transmit the genetic information. RNA is then responsible for directing the synthesis of the new protein.
Importance of nucleic acids :
Vital for cell functioning :
Nucleic acids are vital for cell functioning, i. e for life. They are responsible for keeping track of hereditary information in a cell. They function together. DNA store genetic information and pass it to RNA, then RNA reads, decode and uses the given information to synthesize new protein. Thus they control the information that makes every cell and consequently every organism.
Error cause genetic disease :
DNA carries genes. Error introduced into the genes cause genetic disease. These errors synthesized faulty RNA, which synthesized faulty proteins that do not function the way they are supposed to.