Biological Approach

Question 1

What are monozygotic twins

Answer 1

Twins conceived from one egg and one sperm

Question 2

What are dizygotic twins

Answer 2

Two separate eggs are fertilised by two separate sperm

Question 3

What is concordance rates

Answer 3

The proportion of pairs of individuals that share a particular attribute, given that one of the individuals has that characteristic.

Question 4

What is a genotype

Answer 4

The combination of alleles and organism has

Question 5

What is a phenotype

Answer 5

The set of observable characteristics of an individual resulting from the interaction of its genotype with the environment

Question 6

What are genes

Answer 6

A unit of heredity which is transferred from a parent to offspring and is held to determine some characteristics of the offspring

Question 7

What are the assumptions that biologists make about the causes of behaviour?

Answer 7

Everything comes from the nervous system
This might be influenced by our genetic makeup
Which could be a product of evolutionary pressures

Question 8

Evolution

Answer 8

Gradual development of different kinds of living organisms from earlier forms during the history of the earth.
Evolution happens through the process of natural selection

Question 9

Genes, evolution and behaviour

Answer 9

Behaviour geneticists say behaviour such as intelligence, personality, mental illnesses are inherited due to their adaptive advantage