9. DNA's primary structure comprises just four different bases, and its secondary structure is regular and highly stable. How can a molecule with these characteristics hold the information required to build and maintain a cell?

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 9.  DNA's primary structure comprises just four different bases, and its secondary structure is regular and highly stable. How can a molecule with these characteristics hold the information required to build and maintain a cell?

answer :

The DNA molecule is the repository of genetic information and the genetic information is stored in the nitrogen bases present within the DNA molecule

Explanation:

the information is first transcribed and then translated.

          DNA contain genetic information in the bases that it contain.The DNA  undergo transcription to form mRNA and then translation to form protein.Thus the genetic information is transferred from DNA to Protein molecule.

             The so formed Protein molecule build and maintain the cell.




A protein coded for in DNA has much more complex primary and secondary structures, allowing it to hold much more information.

Messenger RNA (mRNA)  is a type of RNA that contains the information for making a protein as  it carries the information, or message, from the DNA out of the nucleus into the cytoplasm. Translation is the second step by which a cell makes proteins using the genetic information carried in messenger RNA (mRNA).

DNA stores biological information in sequences of four bases of nucleic acid adenine (A), thymine (T), cytosine (C) and guanine (G) which are clumped with the sugar phosphate chain in the shape of a double helix.

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