Genes

Question 1

Define epigenetics (2)

Answer 1

chemical reactions that activate + deactivate parts of genome

at certain times + certain locations

Question 2

Evolution of disgust (2)

Answer 2

people more likely to avoid pungent/rotting substances if they wrinkle their faces

protect people from consuming poisonous/harmful substances

Question 3

Aim of Curtis et al. Study

Answer 3

investigate patterns of disgust around the world

Question 4

Procedure of Curtis et al. Study (3)

Answer 4

online survey of 40,000 participants

participants shown 20 images - some images contained potential disease threat

participants asked to rate level of disgust for images

Question 5

Results of Curtis et al. Study (3)

Answer 5

disgust strongest for images presenting threat to immune system

disgust responses diminish with age

disgust responses higher for women than men on average

Question 6

Implications of Curtis et al. study (2)

Answer 6

disgust diminishes with age - threats to immune system less relevant to reproduction as individual moves past reproduction years

disgust higher for women - increased sensitivity to disgust to ensure safe childbearing

Question 7

Limitations of Curtis et al. (2)

Answer 7

disgust can be subjective based on culture

participants may not respond accurately to surveys

Question 8

Aim of Fessler et al.

Answer 8

investigate connection between disgust during pregnancy + vulnerability to diseases