Gene-edited livestock carry huge promise but major pitfalls

If American researchers have successfully employed new gene-editing techniques to develop hornless dairy cattle and piglets born castrated—a seeming boon to farmers and ranchers—they are still struggling to move these ...

Ancient DNA reveals new branches of the Denisovan family tree

It's widely accepted that anatomically modern humans interbred with their close relatives, the Neanderthals and Denisovans, as they dispersed out of Africa. But a study examining DNA fragments passed down from these ancient ...

Biologists develop new method of cloning

DNA, which contains the genetic information of an organism, consists of long chains of nucleotides. In order to study the functions based on the sequence of these building blocks, DNA molecules must be inserted in carrier ...

A record-long polymer DNA negative

A fragment of a single strand of DNA, built of the nucleobases cytosine and guanine, can be imprinted in a polymer—this has been shown by chemists from Warsaw, Denton and Milan. The resulting artificial negative, with a ...

CasPER—a new method for diversification of enzymes

A new study published in the Metabolic Engineering Journal describes a method based on CRISPR/Cas9, which enables flexible engineering of essential and nonessential enzymes without additional engineering. This has multiple ...

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