The author explains that researchers who study the ancestry of Polynesians look at DNA on the Y chromosome. Which detail from the selection explains why?
A. Everyone gets their mitochondria from their biological mother.
B. We are all descended from one small ancestral population in Africa.
C. The Y chromosome changes much less than other chromosomes.
D. Men who have daughters only or no children would not pass on their Y chromosome.
The author explains that researchers who study the ancestry of Polynesians look at DNA on the Y chromosome. Which detail from the selection explains why?
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The correct answer is C. The Y chromosome changes much less than other chromosomes.
Explanation: Researchers focus on the Y chromosome because it is passed down from father to son with relatively few changes over generations. This stability allows scientists to trace lineage and study ancestry effectively, particularly in understanding the genetic heritage of Polynesians. Other chromosomes may undergo more variability, making the Y chromosome a more reliable source for ancestry research in males.