DNA replication is a long process that occurs in the human body. This can occur anytime and anywhere. Telomeres, which are a compound structure at the end of a chromosome, allow the process of replication to begin and they also ensure that the process ends at the right time and correctly. Simply, the overall process involves 4 steps. They include initiation, unwinding, primer synthesis, and elongation.
The 4 Main Stages
The process of initiation includes the replication origin binding to the initiator proteins. This process then enters the unwinding process in which the one DNA strand starts to unwind into halves. Basically from one two-stranded molecule to two one-stranded molecules. Next, the primer synthesis allows for nucleotides to be added to the DNA strand. Adding these allows the process of elongation to begin, which means lengthening the strand.
Once, this is complete the process is complete. The DNA molecule has been replicated to the opposite "letter" needed to complete the two-stranded molecule. Scientists have also come to the conclusion that in order to understand DNA replication in more depth they must take a closer look at the telomeres. This is a compound structure near the end of the chromosomes. The proteins from the prime synthesis stage are involved with the telomeres and allow them to function. Using all these different properties and functions, DNA replication is possible in the human body, perhaps even by scientists themselves.
Thank you to Khushi Sumani, an amazing Michigan high school student for contributing this informative article to our blog! If you are a high school interested in being featured, submit 300-400 words on a STEM current event of you choice through the form on our homepage!
Until next time, keep on that STEM journey.