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Unraveling the double helix

We learned in a previous post that in 1952, after a lot of experiments, DNA was accepted by the scientific community as the genetic material of the cells. However, something was still missing, and that was its structure. For many… Continue Reading

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Classic experiments: DNA as the genetic material

In a previous post, we learned that DNA is the genetic material of the cells, and one of its most important functions is that it contains genes that carry the information for the determination of the hereditary characteristics. However, scientists were… Continue Reading

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The genetic material

DNA or Deoxyribonucleic acid is the genetic material of all the cells and most viruses, with the exception of some viruses that use another type of nucleic acid, called RNA or Ribonucleic acid. As we will see in the following… Continue Reading

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What are viruses?

Viruses are microscopic parasites whose size belongs to the nanometer scale. They can invade the cells of other organisms in order to reproduce, since they don’t have the ability to do that independently, outside of their hosts. You might be… Continue Reading

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Macromolecules

We have already talked about how eukaryotic and prokaryotic organisms organize their cells in order to carry out their functions in efficient ways. But how are the different cellular parts (or organelles in eukaryotes) formed and how do they carry… Continue Reading