Revise structure and replication of DNA for your Higher Human Biology exam with Bitesize Scotland interactive practice quizzes covering feedback and common errors.

Revise the structure and replication of DNA for your Higher biology exam with Bitesize Scotland interactive practice quizzes covering feedback and common errors.

In the early 1950s, the identity of genetic material was still a matter of debate. The discovery of the helical structure of double-stranded DNA settled the matter — and changed biology forever.

Life depends on double-stranded DNA unwinding and separating into single strands that can be copied for cell division. Scientists have determined at atomic resolution the structure of machinery ...

The DNA polymerase delta enzyme selects the right bases, and proofreads the sequences formed, as well as helping to repair the rare errors. The enzyme is composed of a core made up of p125 and P50 ...

Decoding DNA and knowing secrets of human anatomy, ... In biology, even a diagram can fetch marks. Ragini Bharadwaj / TNN / Updated: Mar 3, 2012, 05:31 IST. Share. AA + Text Size. Small; ...