Obesity is a risk factor for many health problems, but a new Penn Medicine study published this month in the journal Sleep suggests having a larger tongue
By Madeleine Stone @themadstone
Every morning this past July, Max Emanuel, a veterinary student at the University of Pennsylvania, would get up and drive to work. But Emanuel’s was no run-of-the-mill morning commute.
It’s an early lesson in genetics: we get half our DNA from Mom, half from Dad.
But that straightforward explanation does not account for a process that sometimes occurs when cells divide. Called gene conversion, the copy of a gene from Mom can replace the one from Dad, or vice versa, making the two copies identical.
Evolution in extreme environments has produced life forms with amazing abilities and traits. Beneath the waves, many creatures sport iridescent structures that rival what materials scientists can make in the laboratory.
Francis Marchlinski and David Frankel of the Perelman School
Maintaining the ends of chromosomes, called telomeres, is a requisite feature of cells that are able to continuously divide and also a hallmark of human cancer.
Murray Grossman of the Perelman School of Medicine explains frontotemporal dementia.