A researcher tests treatment Y on several cell cultures produced by tissue culture from one donor sample. The cells were produced by mitosis. The researcher wants to use the results to predict how cells from genetically varied patients will respond.
Which prediction is most reasonable?
The result may represent genetically varied patients because mitosis creates different allele combinations in each culture.
The result may represent genetically varied patients because all the cultures were grown under the same conditions.
The result may not represent genetically varied patients because tissue culture changes the alleles of the donor cells.
The result may not represent genetically varied patients because the cultures have little genetic variation.
100 exam-style questions on Edexcel GCSE Biology 4.3 Selective breeding and genetic modification, covering 4.3.1 Selective breeding and its impact, 4.3.2 Tissue culture, 4.3.3 Genetic engineering overview, 4.3.4 Main stages of genetic engineering, 4.3.5 Advantages and disadvantages of GM organisms, 4.3.6 Agricultural solutions for a growing population, and 4.3.7 Evaluating genetic engineering and breeding. Each one has a worked solution and a mark scheme showing where the marks go.