(For a Reuters live blog on U.S., UK and European stock markets, click LIVE/ or type LIVE/ in a news window) * FTSE 100 down 0.3%, FTSE 250 off 0.1% Nov 12 (Reuters) - UK’s FTSE 100 index fell on Friday, dragged lower by drugmaker AstraZeneca following its profit miss, while commodity-linked stocks slipped as a stronger dollar dented metal and oil prices. The blue-chip FTSE 100 index declined 0.3% at 0819 GMT, led by AstraZeneca after the COVID-19 vaccine maker pledged to not profit off the shot knocking of some earnings and reporting a smaller-than-expected profit. A drop of 0.4% in shares of miners and 0.9% in energy stocks also weighed on the commodity-heavy FTSE 100 index, as the dollar strengthened against major peers on bets of an earlier-than-expected interest rate. According to a latest Chambers of Commerce survey, 80% of businesses suffer from price increases in the UK, adding to fears of inflation in the market, Bloomberg News reported. (bit.ly/30lg4FP) The domestically focussed mid-cap index fell 0.1%, with industrial and machinery stocks among the worst performers. Online trading platform IG Group slipped 0.1% after completion of a comprehensive refinancing of its debt, providing it with additional financial flexibility to grow. (Reporting by Bansari Mayur Kamdar; Editing by Shailesh Kuber)