Understanding Human Height: Nature vs. Nurture

What is the average height of an American male today?

• Five foot nine

• Five foot four

• Six foot

• Six foot three

How did the switch to agriculture affect human height?

• Increased by 8 inches

• Decreased by 8 inches

• Remained the same

• Varied by region

What did early scientists correlate with height?

• Diet

• Education

• Wealth

• Climate

What did Francis Galton's study reveal about the height of siblings?

• Siblings' heights were similar

• Siblings' heights were unpredictable

• Siblings' heights were unrelated

• Siblings' heights were identical

What percentage of height variation is explained by genetics according to a 2007 study?

• 100%

• 86%

• 50%

• 26%

How many genes have been identified to influence height?

• 100

• 1200

• 400

• 800

What is the contribution of the HGMA2 gene to height?

• A quarter of an inch

• Half an inch

• An eighth of an inch

• One inch

What is the term used to describe a trait influenced by nearly all genes?

• Epigenetic

• Monogenic

• Polygenic

• Omnigenic

What environmental factor is crucial in determining adult height?

• Climate

• Diet during childhood

• Exercise

• Sleep patterns

Which country has the tallest average male height today?

• United States

• Netherlands

• South Korea

• Australia