Question

Which small piece of a DNA molecule contains no base pairing errors?

A. TAG TA
B. TAG TA ATC AT GTA AT
C. TAG TA
D. TCT TA ATG CC ATG AT

Answer 1

The small piece of a DNA molecule that contains no base pairing errors is TAG TA.

Step-by-step explanation:

The small piece of a DNA molecule that contains no base pairing errors is option C, which is TAG TA.

The base-pairing rules in DNA state that adenine (A) always pairs with thymine (T), and guanine (G) always pairs with cytosine (C).

In option C, TAG TA, each base is correctly paired with its complementary base. The adenine (A) is paired with thymine (T), and the guanine (G) is paired with cytosine (C), following the base-pairing rules.