Indicate true (T) and false (F) statements below regarding integrin signaling. Your answer would be a four-letter string composed of letters T and F only, e.g. TFTT. ( ) Integrins usually bind their ligands with a higher affinity compared to other cell-surface receptors. ( ) Unlike cadherins, integrins usually function as individual dimers and do not cluster. ( ) Anchorage dependence is mainly mediated via integrin signaling. ( ) Integrins can activate the Ras-MAPK pathway.