biology

What is a cell?

Although it seems like a simple question to answer, it is not so easy. What are the elements it contains? What capabilities should it have? We explain it to you.

Mutation

It is the modification that takes place in the genetic data or hereditary material (DNA) of a living being, and therefore, in all its characteristics.

Triassic

This is the first period of the Mesozoic era, spanning from 245 million years ago to 208 million years ago.

Apoptosis

This somewhat strange word describes the programmed death of a cell caused by itself.

Pesticides with DDT quadruple the risk of breast cancer

Long-term exposure to products with DDT (a compound whose use was already banned by the World Health Organization 45 years ago) during pregnancy causes the daughters of these women to be four times more likely to develop breast cancer than those who have not. been exposed to this compound. The study was developed by a team of scientists from the Kaiser Foundation Health Plan in Oakland, California (USA).

They discover a protein that silences the biological clock

Our biological "tick-tock" regulates daily cycles in virtually every aspect of our human physiology and that of many animals as well. Now, a new study led by researchers at the University of California, Santa Cruz (USA) has discovered that a protein associated with cancer cells, specifically the PASD1 protein, is capable of suppressing the biological clock that drives circadian rhythms of cells throughout the body. The finding has been published in the journal Molecular Cell.

Chimpanzees cook too

We share 98% of our DNA with chimpanzees, hence the fact that their cognitive ability allows them to cook is not so surprising, according to the latest study carried out by Yale University (USA) and published. in the journal Proceedings of the Royal Society B.

Did life arise this way on Earth?

A team of scientists from the University of North Carolina (USA) has discovered new clues about the origin of life 4,000 million years ago thanks to a "primal genetic code" with specific enzymes, which could have given rise to complex life. The results of the study have been published in the journal Proceedings of the National Academy of Sciences.

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