Genetics Basics
Genes and Personality
Gene-Environment Interaction
Twin Studies
Real-World Examples
100

This molecule carries the instructions for building organisms.

What is DNA?

100

Genes influence these aspects of personality, such as temperament, mood, and intelligence.

What are behavioral and cognitive traits?

100

This term describes how lifestyle or exposure can turn genes on or off.

What is epigenetics?

100

Identical twins share this percentage of their genes.

What is 100%?

100

Genes can increase risk for conditions like this common health issue linked to lifestyle.

What is obesity?

200
Humans inherit genes on these 23 pairs of structures inside a cell.

What are chromosomes?

200

This system affects stress response and mood, impacting personality.

What is the endocrine system?

200

Even with identical DNA, this factor causes differences in how people develop.

What are life experiences or environment?

200

This study type compares twins raised together and apart to understand genetics’ role.

What are twin studies?

200

These genes can influence athletic performance, endurance, and recovery.

What are genes related to physical traits?

300

Different versions of the same gene are called these.

What are alleles?

300

Levels of these brain chemicals influence emotions and social behavior.

What are serotonin and dopamine?

300

A person born introverted may become more outgoing in this type of environment.

What is a nurturing or social environment?

300

Despite identical DNA, these cause twins to look or behave differently as they age.

What are different life experiences and environments?

300

The genes of your friends and classmates can affect this life outcome.

What is staying in school or educational attainment?

400

This process determines which genes are active or inactive in a cell.

What is gene expression?

400

Studies show that these siblings raised apart share many personality traits.

What are identical twins?

400

This biological mechanism involves DNA methylation or histone acetylation affecting gene expression.

What is epigenetic inheritance?

400

Twin studies show that personality is shaped by these two factors combined.

What are genetics and environment?

400

Social norms like smoking bans can change the effect of these on behavior.

What are genetic tendencies?