As of April 2021, the current world population is estimated to be 7.9 billiion. Although the world population is ever increasing every year, each individual is unique in their own way. There may be people who look alike, of course, but never the same. Then what makes 'us' so unique, and different from everyone else?

The answer to the question lies in DNA, the human blueprint. This blueprint is based on the genetic information from each of your parents and encrypted in the DNA.

For example, houses are built according to floor plans and designs. These plans and designs serve as blueprints as well as the key to uniqueness of the finished homes. Just like the house floor plans and designs, human blueprints are slightly different from one another, which attribute to each of our characteristics.

There are 23 pairs of chromosomes in a human cell. Chromosome is a long DNA molecule packaged so that it fits into the nucleus of the cell. The length of the DNA alone is approximately 2 m, making it impossible to fit into a space that's 1/10,000,000 ~ 1/100,000 smaller than itself. So the human cells decided to structure and package the DNA into chromosomes to fit the genetic information into the nucleus.

Deoxyribonucleic acid, the DNA, is consisted of two strands that wind into a coiled ladder-like structure known as double helix. Each strand has a deoxyribose (sugar) and phosphate group backbone.

Deoxyribonucleic acid, the DNA, is consisted of two strands that wind into a coiled ladder-like structure known as double helix. Each strand has a deoxyribose (sugar) and phosphate group backbone.

There are four types of bases attached to the deoxyribose and phosphate backbone in the double helix: adenine (A), thymine (T) guanine (G), and cytosine (C).

These bases in each strand of backbone make up a base pair and the combinations of these base pairs encode genetic information.

These base pair sequences work as a blueprint of the human body. They code for the physical characteristics including your skin tone, the color of your hair, responses toward pharmaceutical products, allergies, and susceptibility toward certain diseases.

DNA is the infrastructure that contains all of your genetic information, so to speak. All of your physical characteristics and health conditions are comprised of the world of the DNA.

Stay tuned for the next episode.

Thanks to BTS!

A few years ago, K-pop boy band BTS had released a single album, 'DNA'.. Thanks to this group of K-pop singers, everyone has now become familiar with the word DNA and the scientific meaning behind this nomenclature. Kudos to BTS for the influence!