A diploid somatic cell of a female African clawed frog (Xenopus laevis) contains 6.8 × 10-12 g of DNA.
Identify the type of cell division that produces mature egg cells (ova) in this frog.
Calculate the mass of DNA that a single mature egg cell of this frog will contain.
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.