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What do we reply when we’re asked a simple question– “Who are we?” We often impersonate ourselves either as a child, a man or as a friend, a husband/wife or an old person. There is no strict definition of who we are which applies to all respect of life. Questions like- Who we are? Where did we come from? And what is the purpose of our lives? Bothers us at least once in our lifetime. Religions have an easy answer- we’re all God’s creation but this theory of a superpower contradicts with the findings and beliefs of modern day science..

Scientists have proved that the origin of life was from a Big Bang. It all started with a massive big bang billions and billions of years ago and they say we are made up of stars. Science has helped us know the unknown and discovered mysteries of nature. And it is the immense research and dedication of scientist today that has helped build one of the largest laboratories in the world for particle physicist which now we call as Large Hadron Collider. At LHC, scientists are trying to experiment the origin of life, the big bang by colliding photons together which might have created the whole universe in the beginning. This is the place where particle physicists’ spend most of their time finding the answer.

Biologists on the other hand are working on “Chicken or Eggs” principle, which came first and have achieved a remarkable breakthrough in the field of science. They hold their own way in defining the origin of life.

Couple of weeks ago, one of my friends who is an expert and a learner in a field of biology gave me some insight on the building blocks of life amino acid and DNA (Deoxyribonucleic acid). After going through details of DNA, it awed me. It made me more curious to life than I was before. We know we are living beings but if we go deep down we are made up of all non-living things almost 98% of us are non-living things (non organic matter).

In the biologists way, first living organism on earth was single celled bacteria (prokaryotes). We humans are a compound of cells packed together to form a living structure. Whatever we eat, we think, we do and we get are all related and affected deep inside the double helix structure we call DNA. If we put our cell into microscope and analyze what is happening inside, we get one big nucleus and other tiny little particles that surround them in cytoplasm and which is protected/covered by a thin membrane. Inside a nucleus, there are 46 (22 pairs of autosomes and one pair of sex chromosomes) DNA structures in X shape we call them chromosomes. If we zoom in further now we get a helix structure of four basic compounds piled up together forming a bond. GUANINE, ADENINE, THYMINE, CYTOSINE and URACIL are the five main nucleoubase and it is the bonding of these bases that forms gene and RNA(AUGC) and gives the origin of life.

There are other factors inside a cell that plays active role in the building; there are amino acids, endoplasmic reticulum, mitochondria, enzymes, hormones and others. But the basic building blocks, nucleoubases: AT GC they are same in all living organism whether it’s an animal, insects, mammal, plants or single celled bacteria. A strand of DNA (a double helix long bond of ATGC) forms a gene. A gene is distinct to the entire living organism in the planet. A gene of one organism won’t bond with other. It’s the structure and positioning of their bonds (A,T,G,C in DNA) that makes us different from each other.

So, we all living beings on earth have the same building blocks of code (ATGC) that binds us all together. It’s the garland that sets who we’ll be, what we’ll be doing and how long we’ll be. So, it’s better to ask the person who asks us who we are than to ponder deep into microscopic world where we all are same and have the same building blocks…

To be Contd….