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 many growth spurts do you go through before you're done growing?      Gillian Hooker, Ph.D., Sc.M.: I am the Associate Director of the Johns Hopkins Bloomberg School of Public Health/National Human Genome Research Institute Genetic Counseling Training Program and a contracted staff scientist within the Social and Behavioral Research Branch of the NHGRI. Prior to entering the field of genetic counseling, I completed my Ph.D. in Molecular, Cellular and Developmental Biology. Growth spurts are periods of time in which growth speeds up. Infants have growth spurts every few weeks, and then they become less frequent as you get older until you reach your final adult hight. Several different genetic and environmental factors determine an individual's final adult height. Peru High School in IN (9th grade student)

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