The Function of DNA
DNA performs two major functions; it makes copies of it self (replicates) so that it is present in every cell and it carries the information needed for protein synthesis.
We can't understand protein synthesis until we know about RNA, so at this point we are just interested in replication.
We can't understand protein synthesis until we know about RNA, so at this point we are just interested in replication.
DNA Replication
If genetic information was your iTunes account, then DNA is the Library stored on you computer. RNA is the bits you select to have on your iPod. When DNA copies itself, it is like backing up your account and copying it when you get a new computer. It ensures the information is preserved and passed on to your new machine - though errors can occur they are relatively minute considering the task.
It is difficult to describe how DNA replicates using just words. But here it is in a nut shell followed by a diagram. You will probably find that the video is most useful though.
It is difficult to describe how DNA replicates using just words. But here it is in a nut shell followed by a diagram. You will probably find that the video is most useful though.