Nitrous acid causes mutation by

Question

Nitrous acid causes mutation by (A) acting as a base analogue (B) addition of a base pair (C) hydrolysing base sugar linkage (D) removing amino group from the bases

Tardigrade Admin · Accepted Answer

Nitrous acid deaminates with decreasing frequency, the bases G, C and A in DNA and with equal frequencies in RNA. HNO2 deaminates adenine (A) to hypoxanthine (H): Cytosine (C) to uracil (U) and guanine (G) to xanthine (X). It pairs with C; U pairs with A and X pairs with C.

Q. Nitrous acid causes mutation by

acting as a base analogue

addition of a base pair

hydrolysing base sugar linkage

removing amino group from the bases

Nitrous acid deaminates with decreasing frequency, the bases G, C and A in DNA and with equal frequencies in RNA. HNO₂ deaminates adenine (A) to hypoxanthine (H) : Cytosine (C) to uracil (U) and guanine (G) to xanthine (X). It pairs with C; U pairs with A and X pairs with C.

Q. Nitrous acid causes mutation by

acting as a base analogue

addition of a base pair

hydrolysing base sugar linkage

removing amino group from the bases

Nitrous acid deaminates with decreasing frequency, the bases G, C and A in DNA and with equal frequencies in RNA. HNO2 deaminates adenine (A) to hypoxanthine (H) : Cytosine (C) to uracil (U) and guanine (G) to xanthine (X). It pairs with C; U pairs with A and X pairs with C.

Nitrous acid deaminates with decreasing frequency, the bases G, C and A in DNA and with equal frequencies in RNA. HNO₂ deaminates adenine (A) to hypoxanthine (H) : Cytosine (C) to uracil (U) and guanine (G) to xanthine (X). It pairs with C; U pairs with A and X pairs with C.