What is an allele?
Simply put, it is a form of a gene which can lead to different phenotypes, e.g. eye colour. There is one allele that codes for blue eyes and another allele that codes for brown eyes.
AW
Related Biology GCSE answers
All answers ▸State whether arteries carry blood towards or away from the heart and then give two features of arteries relating to this role
Describe the role of blood vessels in the control of body temperature.
Explain the function of the heart
What is cancer and what are the most common types?