תפריט כתבה
Worm experiments reveal how epigenetic effects persist across generations
Phys
17:20
Every cell in an organism contains the same DNA, which carries all the instructions needed for it to function. Yet cells do not all use the same genes: A nerve cell, for example, does not activate the same genes as a muscle cell. Epigenetics refers to the mechanisms that allow gene activity to be modulated without changing the DNA sequence.