Self – complimentary, antiparallel sequences in RNA can form
short duplex structures. If you transcribe both complimentary
strands of a DNA segment into RNA and during transcription the
Watson – Crick base pairing rules are followed, the resulting RNA
molecules are complimentary to each other. These strands can then
assemble into a “double – stranded” RNA duplex.

Would the individual RNA molecules form the
same or different numbers of
intramolecular H – bonded base pairs?

If the sequence of one of the RNA molecules was such that it
could form several short intramolecular hairpins along its length,
how would the hairpins in the complimentary RNA strand differ?