Identification of Variables Types of variables In an experiment, a variable is any factor that could change or be changed There are different types of variables within an experiment The independent...
Experimental Design Planning is an essential part of experimental biology Preliminary research can be very helpful when trying to design an experiment to investigate a particular theory or h...
Nature vs Nurture in Brain Development Brain development refers to the growth of the brain and the formation of connections between neurones, or neural pathways There are a number of factors that c...
Producing Drugs Using GMOs Genetic engineering is a technique used to deliberately modify a specific characteristic of an organism The technique involves removing a gene that codes for a desired ch...
Personalised Medicine Personalised medicine involves the development of targeted drugs to treat a variety of human diseases in individuals with different genotypes Such drugs can be tested on synth...
Action of Drugs on Synapses The chemicals in drugs can have a major impact on the functioning of the brain and nervous system Some prescription drugs can have a beneficial effect on those suffering...
Imbalances in Brain Chemicals Leading to Diseases Neurotransmitters are chemicals that transmit nerve impulses across synapses Some disorders and diseases are linked to an imbalance of neurotransmi...
Habituation Animals must respond to changes in their external and internal environments in order to survive Changes in the environment, or stimuli (singular stimulus) are detected by specialised re...
The Role of Animal Models in Research The human brain is very difficult to study The brain is complex and its tissues are delicate meaning that it is easy to cause damage during a surgical examinat...
