By Boleslaw Lasocki (Reuters) – UK’s FTSE 100 dropped on Thursday, following a selloff in oil and mining majors due to tepid commodity prices on persisting concerns about a global recession. The blue-chip FTSE 100 ended 1% lower, with oil majors BP and Shell leading losses, while the domestically focused FTSE 250 shed 1.1%. [O/R] London-listed shares of global miners including Anglo American, Rio Tinto and Glencore weakened as copper prices tumbled to a 16-month low. [MET/L] “The fall in metals … that’s about worries over a slowdown in the global economy,” said Susannah Streeter, senior inve…