Hi, I really need advice to make a big Decision I'll be completing O-level soon and I was wondering whether it is okay to go straight to medical school without offering A-level
As O levels are the equivalent of GCSEs, you will not be able to apply to a British medical school without A levels. You should check the universities' entry requirements and show them to your dad if he needs more convincing. It's true that getting good O levels/GCSEs increases the chances of getting into medical school, but you do need good A levels too, usually in Biology and Chemistry plus another academic subject.
well, my dad says if I get really good marks I could enter the uni without A-level
A Levels are essential entry requirements for medicine, so you'd have no hope of getting in without A Levels in the required subjects
If you don't meet their entry requirements, which includes A Levels, they'll just chuck your application straight in the bin without looking further than your qualifications
well, my dad says if I get really good marks I could enter the uni without A-level
Assuming you're talking about applying to the UK, your dad is wrong.
Many, many medical applicants will have excellent GCSE grades. They ALL still have to get good A-levels and perform well in the relevant entrance tests (UKCAT/BMAT) in order to stand a chance. So will you.