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The Hidden Genetic Code

by Amir Bitran figures by Daniel Utter Proteins, the molecules that sustain all life, are similar to cars and other machines in an important way: they require a specific, well-defined structure to function. Obviously, a random pile of car parts cannot be driven. And similarly, a protein that is not assembled correctly cannot perform crucial tasks like producing energy, supporting cell structure, and generating electric signals. In … Continue reading The Hidden Genetic Code

Human egg cell about to undergo in vitro fertilization [Image: ‘Oocyte with Zona pellucida’ from ZEISS Microscopy]

It’s a boy! Baby is born with DNA from three “parents”

  A now five-month-old boy was the first child to be born via spindle nuclear transfer, a controversial fertilization procedure that incorporates genetic material from three different people.  Most of our genes are located in the DNA found in a cell’s nucleus, but a few reside in tiny compartments called mitochondria.  While rare, mutations in mitochondrial DNA can result in devastating disorders that often cannot … Continue reading It’s a boy! Baby is born with DNA from three “parents”