2012 National DNA Day Online Chatroom Transcript

This is just one question from an archive of the National DNA Day Moderated Chat held in April 2012. The NHGRI Director and many genomics experts from across NHGRI took questions from students, teachers and the general public on topics ranging from basic genomic research, to the genetic basis of disease, to ethical questions about genetic privacy.

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How come some people have brown eyes but their child's eyes are a different color?      Barbara Biesecker, Ph.D.: I am an Associate Investigator and Genetic Counselor in NHGRI's Social and Behavioral Research Branch. I direct the JHU/NHGRI Genetic Counseling Training Program and have been doing genetic counseling for thirty years. My primary interests are in achieving quality of life for those affected with a genetic condition or at risk. Eye color is caused by many genes that are inherited from both parents. Some colors are more dominant than others so eye color can vary a lot in the same family. Peru High School in IN (9th grade student)

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