Question

which of the following is a known mutagen?
○ all of these
○ x-rays
○ charred meat cooked at high temperatures
○ sunlight
○ cigarette smoke

Explanation:

X - rays are ionizing radiation which can cause DNA damage and mutations. Sunlight contains ultraviolet (UV) radiation which can lead to mutations in skin cells. Cigarette smoke has many chemical mutagens. Charred meat cooked at high temperatures contains heterocyclic amines and polycyclic aromatic hydrocarbons which are mutagens. So all the given options are mutagens.

Answer:

all of these