Related topics: species

Effect of small polyanions on retroviruses

A retrovirus is a virus that inserts a copy of its genome into the DNA of a host cell that it invades, thus changing that cell's genome. Once inside the host cell's cytoplasm, the virus uses its reverse transcriptase enzyme ...

Durability, docility genes solve domestic horse origins mystery

Humans tamed horses some 4,200 years ago in the northern Caucasus region of what is today southwestern Russia, a study said Wednesday, solving the centuries-old mystery of where and when the process began that led to today's ...

Prehistoric humans rarely mated with their cousins

Today, more than 10 percent of all global marriages occur among first or second cousins. While cousin-marriages are common practice in some societies, unions between close relatives are discouraged in others. In a new study, ...

Neanderthal ancestry identifies oldest modern human genome

Ancient DNA from Neandertals and early modern humans has recently shown that the groups likely interbred somewhere in the Near East after modern humans left Africa some 50,000 years ago. As a result, all people outside Africa ...

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