The figure shows how the genetic material is arranged inside a human cell.
Figure: How the genetic material is arranged inside a human cell

Name structures A and B.
Region C codes for one protein. Name the region of DNA labelled C.
Give the meaning of the term 'genome'.
Give one reason why scientists are studying the human genome.
76 exam-style questions on AQA GCSE Biology 6.1 Reproduction, covering 6.1.1 Sexual and asexual reproduction, 6.1.2 Meiosis, 6.1.3 Advantages and disadvantages of sexual and asexual reproduction, 6.1.4 DNA and the genome, 6.1.5 DNA structure, 6.1.6 Genetic inheritance, 6.1.7 Inherited disorders, and 6.1.8 Sex determination. Each one has a worked solution and a mark scheme showing where the marks go.