IB myp 4-5 Biology – Practice Questions- All Topics
Topic :Biotechnology-Ethical Implications
Topic :Biotechnology– Weightage : 21 %
All Questions for Topic : Genetic modification,Cloning,Ethical Implications,Genome mapping and application,3D tissue and organ printing
Question:
Cultivated varieties of potatoes have been developed from wild species in South America. The process took hundreds or maybe even thousands of years. Explain how a cultivated variety of plant can be developed from a wild species and reasons for it taking such a long time.
▶️Answer/Explanation
Ans: Farmers select the best potato plants/tubers; and grow the next year’s crop from them; mutations give variation; much less variation if sexual reproduction does not occur; slower change/evolution with less genetic variety.