What is NUCLEIC ACIDS ???
Do you know what is the example of nucleic acids?
ANSWER : DNA
DNA is one type of nucleic acid. The other example of nucleic acids are RNA, mRNA, and tRNA. These nucleic acids are the building blocks of living things that composed of carbon, hydrogen, nitrogen, oxygen and phosphorus.
In other words, they are also the polymer of nucleotides because they made up of three components such as pentose sugar, nitrogenous base and phosphate group.
DNA is in double helix because the long chains are twisted and it will form a ladder to hold the genetic information.
DNA = Deoxyribonucleic acid
RNA = Ribonucleic acid
mRNA = messenger RNA
tRNA = transfer RNA
ANSWER : DNA
DNA is one type of nucleic acid. The other example of nucleic acids are RNA, mRNA, and tRNA. These nucleic acids are the building blocks of living things that composed of carbon, hydrogen, nitrogen, oxygen and phosphorus.
In other words, they are also the polymer of nucleotides because they made up of three components such as pentose sugar, nitrogenous base and phosphate group.
DNA is in double helix because the long chains are twisted and it will form a ladder to hold the genetic information.
DNA = Deoxyribonucleic acid
RNA = Ribonucleic acid
mRNA = messenger RNA
tRNA = transfer RNA
WHY mRNA and tRNA = NUCLEIC ACIDS ???
Reason : The scientists had found them first in the nucleus of cells. So that, they are being classified as nucleotides.
*Pentose sugar :
Pentose sugar is five-carbon sugar.
The example of pentose sugar are ribose and deoxyribose.
Ribose = composed of hydroxyl that attached to carbon atom 2
Deoxyribose = composed of hydrogen atom that attached to carbon 2
The example of pentose sugar are ribose and deoxyribose.
Ribose = composed of hydroxyl that attached to carbon atom 2
Deoxyribose = composed of hydrogen atom that attached to carbon 2
*Nitrogenous base:
This nitrogen-containing bases are the ring structure that containing the nitrogen.
i) Purine bases :
- ADENINE AND GUANINE
ii) Pyrimidine bases :
- CYTOSINE, THYMINE AND URACIL
i) Purine bases :
- ADENINE AND GUANINE
ii) Pyrimidine bases :
- CYTOSINE, THYMINE AND URACIL
*Phosphate group:
The phosphate groups can be joined together to form the phosphodiester bonds and it also can be joined to other molecules, such as sugar.
The formation of nucleotides are when the phosphate is added to a nucleoside.
The formation of nucleotides are when the phosphate is added to a nucleoside.
How the nucleotides and nucleic acids are FORMED ???
The nitrogenous base is linked to the pentose sugar (example Adenosine) by condensation reaction to form nucleoside. Then the phosphate group is added to the nucleotides to form nucleotide. After two nucleotides are linked together and the from dinucleotides, then followed by the formation of polynucleotides from dinucleotides which are linked together by phosphodiester bonds.