Isn't the verse of the Qur'an 23:14 (... and We made the lump, bones ...) scientifically inaccurate?

> Then We made the sperm-drop into a clinging clot, and We made the clot into a lump [of flesh], and We made the lump, bones, and We covered the bones with flesh; then We developed him into another creation. So blessed is Allah, the best of creators. > Qur'an 23:14 In this verse Allah says "... and We made the lump, bones ...". But the lump doesn't totally convert to bones, only a part of it does. So isn't this wrong? Again some might answer this by giving this translation, "... and We made (from) the lump, bones ..." But the Arabic word 'من' is absent here. That means that Allah didn't say that, rather it was put there by the translator. How do you explain this matter? I might be wrong so please forgive me, I'm a human after all.