Silkworm's brain determines diapause by thermal information

Diapause is a seasonal adaptation strategy of insects and animals in which biological functions are put on hold, such as insect eggs that remain dormant until conditions are more favorable to hatch. This is not a passive ...

Worms discovered in the brain of lizard embryos for the first time

Researchers have discovered nematodes, or worms, in the brains of lizard embryos. This is the first time they have been found in reptile eggs, and it was previously believed that egg laying prevents parasites from being transmitted ...

Jumping genes threaten egg cell quality

A woman's supply of eggs is finite, so it is crucial that the quality of their genetic material is ensured. New work from Carnegie's Marla Tharp, Safia Malki, and Alex Bortvin elucidates a mechanism by which, even before ...

Mathematical model can improve our knowledge on cancer

Researchers at the Niels Bohr Institute, University of Copenhagen, have developed a new mathematical tool to characterize what happens when cells lose their polarity (direction) in diseases such as cancer. The result is advancing ...

How do jumping genes cause disease, drive evolution?

Almost half of our DNA sequences are made up of jumping genes—also known as transposons. They jump around the genome in developing sperm and egg cells and are important to evolution. But their mobilization can also cause ...

Elegant switch controls translation in transition from egg to embryo

The transition from an egg to a developing embryo is one of life's most remarkable transformations. Yet little is known about it. Now Whitehead Institute researchers have deciphered how one aspect—control of the all-important ...

In roundworms, fats tip the scales of fertility

Proper nutrition can unleash amazing powers, moms have always assured us, frequently citing Popeye the Sailor Man as evidence. Now, two University of Colorado Boulder scientists have confirmed just how potent some nutrients ...

page 1 from 4