What are Traits ?

Explore traits, the characteristics that make us unique.

Identical twins:

same DNA, different environment

Identical twins have exactly the same DNA, but they are not exactly alike. Each twin has his or her own personality, talents, likes, and dislikes. There are even diseases that appear in one twin but not the other, including arthritis, diabetes, autism, schizophrenia, cancer, and many others. The differences between identical twins don’t come from DNA—they all come from external factors.

Scientists often study twins to understand how genes and the environment work together to affect traits. They compare traits in identical twins, who have identical DNA, and fraternal twins, who share half their DNA, just like any siblings. If a characteristic appears more frequently in identical twin pairs than in fraternal twin pairs, then it has an inherited component.

The scientific introduction

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37+ trillion cells

There are approximately over 37 trillion cells in the human body. The body relies on cell communication to replicate into healthy cells working in harmony to perform all of the basic functions necessary for human survival.

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The building blocks of life

Cells are the building blocks of all living things and provide structure to the body, nutrients from food, convert nutrients into energy, and perform specialized functions. The hereditary material is found in the cells. Cells can also make copies of themselves.

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100 trillion atoms in 1 cell

When cells are viewed granularly, we find that each of the trillions of cells in the human body is made up of 100 trillion atoms. This means that there are over 37 trillion cells multiplied by 100 trillion atoms in the human body.

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Hair contains atoms

Hair is known to carry a unique atomic signature for every human being. For this reason, it can be used as a method of identifying a person's cellular health by understanding how atoms work.