A farmer grows banana plants. All of the plants were produced by asexual reproduction from one parent plant.
A new disease spreads through the farm and kills all of the banana plants.
Which statement explains why all of the plants died?
The plants were genetically identical, so none had resistance to the disease.
The plants were produced by meiosis, so they all had the same harmful allele.
The plants showed a lot of variation, so the disease could infect all of them.
The plants had two parents, so they inherited the disease from both of them.
186 exam-style questions on OCR GCSE Biology 5.1 Inheritance, covering 5.1.1 The genome, 5.1.2 Environment and phenotype, 5.1.3 Variants and mutations, 5.1.4 How genetic variants influence phenotype, 5.1.5 Asexual and sexual reproduction, 5.1.6 Haploid and diploid, 5.1.7 Meiotic cell division, 5.1.8 Single gene inheritance, 5.1.9 Predicting single gene crosses, 5.1.10 Sex determination, 5.1.11 Multiple gene inheritance, and 5.1.12 Development of our understanding of genetics. Each one has a worked solution and a mark scheme showing where the marks go.