Explain how DNA segments can be cut and spliced together to produce recombinant DNA. How do the segments "find" each other and stick together? How is recombinant DNA then cloned to produce multiple copies of the genes?

The soviet union beat the us to the first successful launch, with the october 4, 1957, orbiting of sputnik 1, and later beat the us to have the first human in earth orbit, yuri gagarin, on april 12, 1961. the "race" peaked with the july 20, 1969, us landing of the first humans on the moon with apollo 11