i am doining MSc biochemistry, is it is possible for me to directly do Phd?

Answer 1

Yes, but you'll probably have to reapply. At UCLA they stress that earning a masters from them in no way guarantees acceptance to their corresponding PhD program (I'm assuming you applied to a masters program and now want to enroll in a PhD program).

So the short answer is: Yes, you can. :)

Answer 2

In the UK, if you got at least an upper second (2:1) for your degree in a subject related to the one that you want to do for a PhD and you know exactly what you want to do for your PhD, then yes you can do a PhD straight away without doing a Masters. This is because the first year of your PhD is a masters (Mphil) and the idea is that if you complete that successfully, your course is then 'converted' to a PhD and you can then finish doing it.

If you need further information, I suggest that you talk to the course co-ordinator (person in charge of) for the PhD course that you're interested in or personal tutor (if you have one) about your options and what to do next.

Hope this information helps!

Good luck with your course!