Genes, proteins and new characteristics
Genes, proteins and new characteristics
Every gene is a section of DNA that contains instructions for making a protein. For example, the insulin gene contains instructions for making the insulin protein, which helps control blood glucose concentration.
Step-by-step lessons on Edexcel IGCSE Biology Genetic modification (genetic engineering). Each one builds up to exam-style questions. Start with the foundational cell biology and core content before moving on to the more data-heavy ecology, genetics and practical-skills topics, which carry a large share of the exam marks.