What is the difference between a gene and an allele?
A gene is a section of DNA or RNA that codes for a protein. Alleles are different versions of the gene. For example, if a gene coding for a particular enzyme mutated, then there would be two alleles of the gene: the 'normal' form and the mutated form. The proteins encoded would probably also be slightly different, for instance the mutated allele might code for the same enzyme but in a slightly different shape.
EP
Related Biology GCSE answers
All answers ▸A scientist discovers a diseased tomato plant where a disease has caused discolouration in the leaves due to a decrease in chlorophyll. Explain why this tomato plant produces far less tomatoes and is much smaller than a healthy tomato plant.
What components is blood made up of?
What is the process of natural selection?
How is the circulatory system is adapted to give oxygen to the tissues and remove waste products?