10. A loss‑of‑function mutation in the lacZ gene would most directly cause: (A) Inability to convert lactose into glucose and galactose (B) Inability to transport lactose into the cell (C) Failure of the repressor to bind lactose (D) Reduced binding of CAP to DNA

12. Which of the following statements correctly distinguishes the mode of gene silencing by microRNA versus RNAi? (A) microRNA almost always leads to slicing of mRNA, whereas RNAi does not (B) RNAi is typically associated with perfect complementarity, whereas microRNA often represses translation through imperfect pairing (C) RNAi uses Dicer but microRNA does not (D) RNAi functions only in the nucleus

10. A loss‑of‑function mutation in the lacZ gene would most directly cause:
(A) Inability to convert lactose into glucose and galactose
(B) Inability to transport lactose into the cell
(C) Failure of the repressor to bind lactose
(D) Reduced binding of CAP to DNA

相關試題

相關試卷

10. A loss‑of‑function mutation in the lacZ gene would most directly cause:(A) Inability to convert lactose into glucose and galactose(B) Inability to transport lactose into the cell(C) Failure of the repressor to bind lactose(D) Reduced binding of CAP to DNA

相關試題

相關試卷

10. A loss‑of‑function mutation in the lacZ gene would most directly cause:
(A) Inability to convert lactose into glucose and galactose
(B) Inability to transport lactose into the cell
(C) Failure of the repressor to bind lactose
(D) Reduced binding of CAP to DNA