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In fact, by tracking types of Y chromosomes, scientists estimate that up to 16 million men today, who live in regions that Khan conquered, could have been descendants of him or his close male relatives.
Original Video：
How Many Children Can A Human Have In A Lifetime?
Key Vocabulary
1. chromosome
chromosome
[ˈkrəʊməsəʊm] (n.)
2. conquer
conquer
[ˈkɒŋkə(r)] (v.)
3. descendant
descendant
[dɪˈsendənt] (n.)
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