Gnetics and behavior

Question 1

what is genetics

Answer 1

Genetics is the study of heredity.

Question 2

introduction

Answer 2

A key assumption of the biological approach is that human behaviour is strongly influenced by our genetic makeup and inheritance.
Genetic similarities is a more specific topic, referred to as relatedness. The greater the genetic similarities between two individuals or a group of individuals, the higher the degree of relatedness.
This topic relates to the research methods (and studies) based on the idea of similarity (or relatedness) between relatives and non-relatives: twin studies, family studies and adoption studies. Thus, twin, kinship and adoption studies are ideal for showing genetic similarity for one behaviour among twins, siblings, parents and adopted children.

Question 3

Twin Studies

Answer 3

Correlational study. Allow reasearchers to see links between genes and behavior and study genetic similarities. Twin studies gather grouops of monozygotic and dizygotic twins and they measure behaviours. They may use survery or questionnaires to measure intelligence. After gather behavioural data the researchers compare the similarities MZ twins and DZ twins by calculating the concordance rate. percentage taht shows the degree of similarity between two people.

Question 4

Critical thinking

Answer 4

• twin studies are the only way to investigate the genetic basis f behavior
• As MZ share 100% of genes any differences is due to their environment
• naturally occuring variable reduces risk of researcher bias
• non experimental cannot draw out cause-effect relationship . Genetics influence a behaviour but don’t entirely cause it
• genetic explanations are reductionist as they reduce complex condictions to the supposed activity of just a small number of genes.