Question

dna mutations can lead to genetic disorders, diseases, or even the death of an organism. which of the following factors is most likely to cause a mutation in dna?
a. obesity
b. radiation
c. water deficiency
d. use of sunscreen

Explanation:

辐射（radiation）是一种常见的能导致DNA突变的因素。肥胖（obesity）、缺水（water deficiency）和使用防晒霜（use of sunscreen）一般不会直接导致DNA突变。

Answer:

B. radiation