Description

Today, you’ll hear the truth about the chromosome that determines the male sex, new secrets from an old iceman, and an exoplanet denser than steel.   

Y Chromosome Puzzle 

• “The Y Chromosome’s genetic puzzle is finally complete.” by Tina Hesman Saey. 2023.  
• “Chromosomal Sex Determination in Mammals.” National Library of Medicine. N.d.  
• “Chromosomes Fact Sheet.” National Human Genome Research Institute. 2020.  
• “The new human pangenome could help unveil the biology of everyone.” by Tina Hesman Saey.  

Iceman Dna  

• “A new look at Otzi the Iceman’s DNA reveals new ancestry and other surprises.” by Tina Hesman Saey. 2023.  
• “Otzi the Iceman.” by M. Vidale, et al. 2016.  
• “Frozen mummy’s genetic blueprints unveiled.” by Tina Hesman Saey. 2012.  
• “High-coverage genome of the Tyrolean Iceman reveals unusually high Anatolian farmer ancestry.” by Ke Wang, et al. 2023.  

Steel Planet  

• “Supermassive Neptune-Sized Exoplanet Has Density Higher than Steel.” by Enrico de Lazaro. 2023.  
• “Bootes constellation: Location, stars and mythology.” by Tim Childers & Rebecca Sohn. 2023.  
• “Exoplanet Discoveries.” NASA. 2023.  
• “A super-massive Neptune-sized planet.” by Luca Naponiello, et al. 2023.  

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