The sex chromosomes determine whether a fetus will be male or female. Normally, women have two X chromosomes and men have one X and one Y chromosome. The Y chromosome is significantly smaller than the female X chromosome and has characteristics that make genetic analysis difficult. As part of an international collaboration, Dr. Peter Ebert (Heinrich Heine University) took part in a comprehensive study of 43 Y chromosomes from 21 populations from all over the world, in which these Y chromosomes were completely "decoded" for the first time. Why has decoding been so difficult so far? The bioinformatician provides insights into the "puzzle" of the Y chromosome in this lecture.
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