Epigenetics

2 cards. Each one is a 40-second story with a five-minute read behind it.

1. Your genes have a memory of which parent they came fromMost of your genes are active, but some follow a strict rule: only one copy is allowed to speak. This process, called genomic imprinting, means certain genes are selectively silen…
2. The genetic switch that balances life is far more fluid than we thoughtFemales possess two X chromosomes, while males carry only one. To prevent a lethal double dose of gene products, one X chromosome is silenced. For decades, this was viewed as a pe…

All of Gardening Open the feed Latest A–Z