A company grows a species of seaweed in tanks where the conditions are kept constant.
One individual, P, has a high growth rate in these conditions. Small pieces of P can each grow into a new individual by asexual reproduction.
Explain how using asexual reproduction from individual P helps the company maintain a high growth rate in its existing tank conditions.
Researchers want to develop seaweed that grows rapidly at a lower light intensity. They use sexual reproduction between two different individuals. Explain why this method is useful for developing the new crop.
The light intensity is kept the same in every production tank. Give one disadvantage caused by using genetically different, sexually produced seaweed in these tanks.
92 exam-style questions on Edexcel GCSE Biology 3.1 Reproduction and meiosis, covering 3.1.1 Advantages and disadvantages of reproduction and 3.1.2 Role of meiotic cell division. Each one has a worked solution and a mark scheme showing where the marks go.