A monkey clone called Tetra could open up a new chapter in human therapy research, it was disclosed yesterday. The female rhesus monkey is the first primate to be cloned by splitting apart early ...

The embryo therefore grows into the same creature that donated the replacement nucleus. A female rhesus monkey named Tetra was cloned in 1999 using a different technique called embryo splitting.

Scientists have cloned a rhesus monkey for the first time, a breakthrough that could help advance medical research but has drawn criticism from an animal welfare group.

The embryo therefore grows into the same creature that donated the replacement nucleus. A rhesus monkey named Tetra was cloned in 1999 using a different technique called embryo splitting.

However, the monkey was cloned from fetal cells, rather than adult cells, and the embryo had to be provided with a non-cloned placenta. So despite this advance, cloning primates remains extremely ...

The embryo therefore grows into the same creature that donated the replacement nucleus. A rhesus monkey named Tetra was cloned in 1999 using a different technique called embryo splitting.

During hundreds of failed cloning attempts, they realized that, in the early cloned embryos, the outer membrane that forms the placenta did not develop properly.

The embryo therefore grows into the same creature that donated the replacement nucleus. A rhesus monkey named Tetra was cloned in 1999 using a different technique called embryo splitting.

During hundreds of failed cloning attempts, they realized that, in the early cloned embryos, the outer membrane that forms the placenta did not develop properly.

The embryo therefore grows into the same creature that donated the replacement nucleus. A rhesus monkey named Tetra was cloned in 1999 using a different technique called embryo splitting.

Scientists have cloned the first rhesus monkey, a breakthrough that could help advance medical research but has drawn criticism from an animal welfare group.