12 Questions
What inspired Eric Mueller to start photographing related people for his book Family Resemblance?
The striking resemblance he saw between himself and his birth mother.
Based on the text, why do researchers like Benedikt Hallgrímsson believe gene-level explanations might not be sufficient to understand facial features?
Because facial genetics are too complex to rely on individual gene analysis.
What does the text suggest about predicting a person's face based on individual genes?
It is nearly impossible due to the subtle effects of each gene.
Why do scientists believe they may need to look beyond gene-level explanations to understand facial features?
To account for the impact of hundreds of genes working together.
What is one of the challenges highlighted in the text regarding studying facial genetics?
The difficulty in predicting a person's face from individual gene analysis.
What alternative approach are researchers considering to understand facial development?
Grouping genes into teams that work together during face formation.
What technique did geneticists use to understand normal faces by quantifying thousands of faces and measuring the distances between landmarks?
Genome-wide association study
Why did geneticists start with identifying genes responsible for facial abnormalities like Crouzon syndrome and Treacher Collins syndrome?
To study extreme cases that are easily identifiable
According to geneticist Seth Weinberg, what causes an individual's facial appearance?
The balance of genes pushing outward and inward
What percentage of the differences in faces can be explained by known genetic variants according to a survey from the 2022 Annual Review of Genomics and Human Genetics?
14%
Why did geneticists screen the genomes of individuals who had quantified normal faces?
To determine if genetic variants correlated with facial measurements
What aspect of an individual's traits accounted for the most variation in facial appearance according to the text?
Body mass index
Test your knowledge on family resemblances and the influence of genetics on facial features with this quiz. Explore how genetic similarities can be observed among related individuals and learn more about the concept of familial resemblance.
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