43. A gene that contains introns can be made shorter (but remain functional) for genetic engineering purposes by using
(A) RNA polymerase to transcribe the gene
(B) a restriction enzyme to cut the gene into shorter pieces
(C) reverse transcriptase to reconstruct the gene from its mRNA
(D) DNA polymerase to reconstruct the gene from its polypeptide product

答案:登入後查看
統計: A(0), B(3), C(2), D(0), E(0) #2765606

詳解 (共 2 筆)

#6324602
The correct answer t...
(共 245 字,隱藏中)
前往觀看
1
0
#5738297
答案是: (B) 利用限制酶将基因切成较短的片段。

含有内含子的基因可以通过利用限制酶将其切成较短的片段来缩短长度,而不影响其功能性。RNA聚合酶用于将基因转录成mRNA,而不会影响基因长度。反转录酶用于从mRNA重构基因,但这不会缩短基因长度。DNA聚合酶用于从多肽产物重构基因,但这不会缩短基因长度。
0
0

私人筆記 (共 1 筆)

私人筆記#5745942
未解鎖


(共 0 字,隱藏中)
前往觀看
0
0