The poly(a) sequence that is added to rna during processing: select all that apply.

Poly A is added to the end of a eukaryotic mRNA modified. Polyadenylation is the combination of a poly(A) tail to a messenger RNA. It also consists of multiple adenosine monophosphate. In other words, it is a stretch of RNA that has only adenine bases. In eukaryotes, polyadenylation is one of the process which produces mature messenger RNA (mRNA) for translation.

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