Aqa Essay Biology

- An extreme biological approach does not account for the wide base of evidence that points to the influence of our environment (e.g. Join 1000s of fellow Psychology teachers and students all getting the tutor2u Psychology team's latest resources and support delivered fresh in their inbox every morning.You can also follow @tutor2u Psych on Twitter, subscribe to our You Tube channel, or join our popular Facebook Groups.The genotype describes the genetic configuration of an individual, whereas phenotype describes the effects of genetic makeup and surrounding environment on behaviour.The nature-nurture debate highlights a key argument in psychology, over the relative influence of biology and environment on the characteristics of an individual; an extreme biological approach assumes that these are determined solely by nature.- The experimental methods used (gathering empirical [i.e.observable] evidence) make this approach very scientific.Case studies – can investigate normal behaviour by observing behavioural abnormality alongside corresponding changes in biology.A very early example is the apparent personality alteration observed in Phineas Gage (mid 1800s) after a railroad construction accident drastically changed his physiology by forcing an iron rod through his brain’s frontal lobe.

Aqa Essay Biology-48Aqa Essay Biology-30

Boost their confidence with reliable and proven strategies for planning the essay and for organising their ideas. Cheat sheets are a real support to both the teacher and the student... Charles Darwin’s publication – On the Origin of Species (1859) – described the process of natural selection; characteristics that are not suited to a species’ environment will die out as it struggles to survive, and with time will evolve over generations so that only adaptive characteristics remain in future offspring.Genes are the genetic information carried by DNA in chromosomes, found within a cell’s nucleus; they are passed on through generations of a species if individuals survive and successfully reproduce.Scans – physiology and activity across the brain can be gauged using various techniques (e.g.MRI, PET, CAT), helping researchers to identify the functions of specific regions (known as localisation of cortical function).Strengths - Scanning research techniques are useful for investigating the functions of the brain: an organ with obvious involvement in our behaviour that would otherwise be unobservable.- The approach presents the strong nature viewpoint of the nature-nurture debate.: Evidence has suggested that if one identical twin (monozygotic [MZ], with near-identical genetic information to the other) develops schizophrenia, there is a roughly 48% chance of the other also developing schizophrenia, whereas this is only about 17% with non-identical twins (dizygotic [DZ], who share about 50% of their genes).Such findings support that genetics play a significant part in the disorder.Drug therapy – behaviour can be manipulated by altering an individual’s biochemistry, a research method that can ultimately lead to developing drug applications to improve health and wellbeing.Initial phases of research are usually conducted on non-humans.

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