Human development

The Yale Embryo

The Yale Embryo

In 1934 a fourteen-day-old embryo was discovered during a postmortem examination and became famous for being the youngest known human embryo specimen at the time. The embryo was coined “the Yale Embryo,” named after the location where it was discovered,

Cystic Fibrosis Transmembrane Conductance Regulator (CFTR) Gene

Cystic Fibrosis Transmembrane Conductance Regulator (CFTR) Gene

The Cystic Fibrosis Transmembrane Conductance Regulator (CFTR) gene was identified in 1989 by geneticist Lap-Chee Tsui and his research team as the gene associated with cystic fibrosis (CF). Tsui’s research pinpointed the gene, some mutations to which cause CF, and it revealed the underlying disease mechanism.

The Effects of Bisphenol A on Embryonic Development

The Effects of Bisphenol A on Embryonic Development

Bisphenol A (BPA) is an organic compound that was first synthesized by Aleksandr Dianin, a Russian chemist from St. Petersburg, in 1891. The chemical nomenclature of BPA is 2,2-bis (4-hydroxyphenyl) propane. The significance of this synthesized compound did not receive much attention until 1936, when two biochemists interested in endocrinology,

Meiosis in Humans

<a href="/search?text=Meiosis%20in%20Humans" title="" class="lexicon-term">Meiosis in Humans</a>

Meiosis, the process by which sexually reproducing organisms generate gametes (sex cells), is an essential precondition for the normal formation of the embryo.

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