Eight restriction endonucleases were used to investigate mitochondrial DNA polymorphisms of takin, cattle, sheep, buffalo and goat in Bovidae.
用8种限制酶分析了种牛科动物，羚牛、黄牛、水牛、绵羊和山羊的线粒体dna的多态性。
The evolution of mechanisms for immune defense has resulted in a variety of strategies. Prokaryotes use restriction endonucleases, antimicrobial peptides, and RNA interference for self-protection.
免疫防御机制演化出许多不同策略，原核生物运用核酸的限制内切酶、抗微生物胜肽及RNA干扰素作为自我防卫。
The evolution of mechanisms for immune defense has resulted in a variety of strategies. Prokaryotes use restriction endonucleases, antimicrobial peptides, and RNA interference for self-protection.
免疫防御机制演化出许多不同策略，原核生物运用核酸的限制内切酶、抗微生物胜肽及RNA干扰素作为自我防卫。
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