Given a context passage, generate a question from the passage such that its answer is shortest continous span from the passage.

An 11-day embryonic Swiss Webster/NIH mouse cDNA library was screened with a partial murine selenoprotein P cDNA probe and a murine selenoprotein-P-type cDNA clone of 2075 bp length was obtained. The clone contained a 5'-leader sequence of 132 bp length, the selenoprotein P coding frame, and 803 base pairs in the 3' untranslated region. Alignment and RNA folding studies revealed the presence of two well conserved selenocysteine inserting motifs in the 3' flanking region. The deduced polypeptide sequence comprises 380 residues including ten selenocysteines. Identical amino acid residues in homologous positions are 86%, 71%, and 64% when compared to the previously reported selenoprotein P sequences of rat, man, and cattle, respectively. The comparatively low similarity between the selenoprotein P sequences reported so far leaves open the question whether they belong to the same molecular clade.
Which is the human selenoprotein that contains several Se-Cys residues?

Coming off their divisional road win over the Dolphins, the Jets flew to Ralph Wilson Stadium for a Week 4 AFC East duel with the throwback-clad Buffalo Bills. New York scored in the first quarter as running back LaDainian Tomlinson got a 1-yard touchdown run. The Jets added onto their lead in the second quarter with a 19-yard field goal from kicker Nick Folk, followed by quarterback Mark Sanchez completing a 41-yard touchdown pass to wide receiver Braylon Edwards. The Bills closed out the half with quarterback Ryan Fitzpatrick finding tight end David Martin on a 4-yard touchdown pass. New York pulled away in the third quarter as tight end Dustin Keller caught a 3-yard touchdown pass from wide receiver/quarterback Brad Smith, followed by his 2-yard touchdown reception thrown by Sanchez. Afterwards, Tomlinson's 26-yard touchdown run effectively secured the victory. Buffalo closed out the game in the fourth quarter as Fitzpatrick threw a touchdown pass to wide receiver Steve Johnson.
Which player scored multiple touchdowns?

Olaf Gudrdsson, or as he was named after his death Olaf Geirstad-Alf, was a legendary Norwegian king of the House of Yngling from the Ynglinga saga.

What noble family was Olaf Geirstad-Alf part of?