[Campbell Biology P.802] Which statement accurately describes interbreeding events among hom... | Practice Question

Which statement accurately describes interbreeding events among hominin species as presented in the text?

  • A: DNA from a human jawbone found in 2015 showed long stretches of Denisovan DNA, indicating a Denisovan great-great-great-grandparent.
  • B: A 90,000-year-old bone fragment revealed a direct offspring of a Neanderthal father and a Denisovan mother.
  • C: Genomic analyses indicate gene flow occurred between Denisovans and Homo sapiens.
  • D: The most extensive evidence of gene flow to date suggests interbreeding only occurred between Neanderthals and Homo sapiens, not Denisovans.

Explanation

The text states: 'Genomic analyses also indicate that gene flow occurred between the Denisovans and our own species, H. sapiens.' Options A and B contain factual inaccuracies regarding the specific lineage and type of DNA found. Option D is incorrect because gene flow involved Denisovans as well.