I would use Sifmole's solution
but here's a fairly silly way to do it.
for(97..122){
    $init = chr; $rep = uc($init);
    eval '$string =~'."s/$init/$rep/g" if $_ % 2
}

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In reply to Re: uc() every other letter by thunders
in thread uc() every other letter by Anonymous Monk

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