The cloning of elite search-and-rescue dogs has become of great interest to emergency response organisations seeking to preserve exceptional scent-detection capabilities.
Describe the biological stages involved in producing a cloned mammal, such as a dog, using somatic cell nuclear transfer.
Handlers often arrange to collect and preserve skin tissue samples from an elite dog while it is still active, rather than waiting until after it has died.
Suggest why utilizing tissue samples harvested from a deceased animal is significantly less likely to result in a successful clone compared to using samples from a living donor.
Suggest why a cloned search-and-rescue dog might not demonstrate the exact same scent-detection performance or behavioral responses as the original donor dog.
39 exam-style questions on Edexcel IGCSE Biology Cloning. Each one has a worked solution and a mark scheme showing where the marks go.