What is a gene?
A gene is a specific section of a chromosome that codes for a particular sequence of amino acids to make a protein.
Related Biology A Level answers
All answers ▸Compare the mammalian heart to that of an amphibian. Use a diagram.
Describe and explain some of the adaptations xerophytes have against living in extreme dry conditions.
How does the presentation of a virus antigen by a macrophage lead to antibody production against the antigen?
Explain how the mammalian pancreas controls blood sugar concentration after a meal.