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1. The twins are genetically identical, sharing the same DNA.
这对双胞胎基因相同,共享相同的DNA。
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2. The study found that identical twins have similar personalities and behaviors.
研究发现,同卵双胞胎具有相似的个性和行为。
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3. The researcher believes that identical twins may share a common biological heritage.
研究者认为,同卵双胞胎可能共享一种共同的生物学遗产。