Modern human DNA contains bits from all over the Neanderthal genome – except the Y chromosome. What happened?

Summary

1. The Neanderthal and modern human lineages separated around 550,000 to 765,000 years ago.
2. Interbreeding occurred approximately 47,000 years ago.
3. Haldane's Rule suggests infertility in Neanderthal-human male hybrids.
4. Health issues in these males might explain missing Neanderthal Y chromosomes.

References

• Media Check: Conversation - Media Bias/Fact Check  (HIGH CREDIBILITY)
• Collections |The Runway (airforce.gov.au)
• RAAF RUNWAY: RATIONALE, GUIDELINES, LEARNING OUTCOMES, ETC