What molecules are proteins made of? (1 mark)

Amino acids

JS

Related Biology GCSE answers

All answers ▸

A gene often has two alleles. One allele is dominant and the other allele is recessive. When is a recessive allele expressed as a characteristic?


Explain how carbon is cycled in the environment, including the role of all living organisms and the use of fossil fuels.


What is a virus?


How can antibacterial resistance be limited?