3.3 The Interdependence of Nature and Nurture

These flashcards cover key concepts about the interdependence of nature and nurture and the complexities of genetic influence on behavior and conditions.

What is the relationship between nature and nurture according to the lecture?

Nature and nurture are interdependent; one does not exist without the other.

Why is it misleading to say 'scientists found a gene for autism or Alzheimer's'?

It's an oversimplification because most genes control multiple traits and behaviors, and they code for proteins, not directly for behaviors or conditions.

What do genes actually code for?

Genes code for proteins, which then combine in different ways to influence various behaviors and conditions.

Do genes guarantee the inheritance of specific characteristics?

No, inheritance of a gene does not guarantee the expression of a characteristic; other factors also play a role.

How do genes relate to depression and anxiety in terms of environmental interaction?

Genetic predispositions only increase risk of depression when interacting with environmental stressors.

What does the Y-axis and X-axis represent in the graph related to depression?

The Y-axis represents the probability of developing depression, and the X-axis represents the number of stressful life events.

What genetic variants are discussed in relation to depression?

Short and long versions of a gene involved in neurotransmitters have been implicated in depression.

How does the risk of developing depression change with genetic variants and stress exposure?

The risk increases for individuals with the short version of the gene when they experience more stress.