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The biological approach to psychology shows us as a product of our genetics. It also focuses on physiology, including the way the brain works, hormones and the nervous system.

There are two main learning processes, operant conditioning and classical conditioning. Operant conditioning is a learning process where the frequency of a certain behaviour is modified according to the beha...

Different phenotypes can be generated without changes to the genotype through a process called Epigenetics. Epigenetics, meaning “above genes”, is the study of changes to the phenotype caused by changes in g...

For a trait to evolve, firstly, there has to be genetic variation among individuals, which will lead to differences in phenotype and cause differences in fitness in a particular environment. These difference...

DNA, deoxyribonucleic acid, is responsible for storing genetic information and is composed of a chain of nucleotides. Each nucleotide is formed by a nitrogen base, a phosphate backbone and a sugar. There are...