37. Which of the following statements best describes CRISPR?
(A) CRISPR is a RNA sequence that complements the target DNA.
(B) CRISPR contains nuclease to destroy target DNA.
(C) CRISPR is present in archaea and bacteria.
(D) CRISPR is only existed in bacteria.

答案:登入後查看
統計: 尚無統計資料