Glossary with audio assistance

drugs used to increase the production of urine by the kidneys and so reduce water retention in the body

deoxyribonucleic acid, the genetic material found inside the nucleus of the cell

enzyme that controls coiling and uncoiling of DNA

enzyme that catalyses the synthesis of new DNA molecules

a gene whose characteristics are always present in the phenotype, in homozygous and heterozygous individuals. It is represented with a capital letter, e.g. B.

classification of drugs within the Misuse of Drugs Regulations 2001

food residue after being heated to remove all the water

smaller than normal size

abnormal shedding of the skin of reptiles