Podcast
Questions and Answers
What is the most common iris colour according to the Newborn Eye Screening Test study?
What is the most common iris colour according to the Newborn Eye Screening Test study?
What was the frequency of change from blue to non-blue iris colours?
What was the frequency of change from blue to non-blue iris colours?
Which iris colour was less likely to change over time compared to non-brown iris colours?
Which iris colour was less likely to change over time compared to non-brown iris colours?
What percentage of parents responded at the 2-year follow-up in the Newborn Eye Screening Test study?
What percentage of parents responded at the 2-year follow-up in the Newborn Eye Screening Test study?
Signup and view all the answers
What did the twin studies show about eye colour?
What did the twin studies show about eye colour?
Signup and view all the answers
Study Notes
Iris Colour and Changes
- The most common iris colour is blue, according to the Newborn Eye Screening Test study.
- In the study, 53.4% of infants had blue irises at birth, which decreased to 41.1% at 2 years.
- The frequency of change from blue to non-blue iris colours was 44.7%.
Iris Colour Stability
- Brown iris colour was less likely to change over time compared to non-brown iris colours.
Study Response Rate
- At the 2-year follow-up, 83.4% of parents responded to the Newborn Eye Screening Test study.
Twin Studies and Eye Colour
- Twin studies showed that genetic factors play a significant role in determining eye colour, with a heritability of 0.95.
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
Description
Test your knowledge of eye color genetics and color vision with this quiz. Learn about the factors that determine eye color and how it can change with age. Explore the genetic and environmental influences on eye color through engaging questions.
