cloning technology refers to a technology producing one or more new living organisms

genetically identical to the original.

One of the noticeable developments of animal cloning was clone of sheep named Dolly by

using the somatic nuclear transfer techniques in 1977, previously considered scientifically

impossible, by Dr. Ian Wilmut and his colleagues. Scientists believe technology for human

cloning is available but knowing the fact that the success rate of animal cloning is too low,

the success of Dolly one out of 277 attempts, human cloning would be much more difficult

and unsafe with current technology.

질문1)
knowing을 분사구문으로 봐야하는지 ?

질문2)
the fact가 어디까지 이어지는 것인지?