Sentences with phrase «human migrations helped»

As with other domesticated crops, it is thought that human migrations helped lead to the emergence of subspecies and hybrids with a consequence — reduced fertility --- but prized for their delectable fruits with high flesh and low seed content.

Not exact matches

Genetic studies such as this one may help anthropologists understand those migrations — and their timing — even better by giving them a genetic «clock» to use when studying today's humans, or potentially DNA extracted from ancient bones.

The article is about how specific genetic changes that either cause disease or protect against disease can help researchers trace human migrations over thousands of years.

The carbon in layers of algae from the bottom of a Japanese lake will help reveal the precise dates of historical climate change and human migrations

But another kind of DNA might help them in their work — ancient human DNA that details migration and population patterns from that time.

But other lipids are known to guide cell migrations in human brain development, and geneticist Ken Howard of University College London suspects HMG - CoA reductase might help produce a similar lipid molecule or modify a protein that attracts the germ cells.

«It's very interesting work that should help us fill in the picture of how human migration is tied to the dissemination of leprosy,» says Daniel Hartl, a population geneticist at Harvard University.

«We accompany three populations within the world of migration: those who have been victims of serious crime like torture, kidnapping, and imprisonment; solicitors of asylum, who we accompany in a smaller proportion but also help; and defenders of migrants» human rights, who've been threatened, displaced, and even killed.»