Which three statements describe how mutations in DNA can occur?

Question

A Radiation from the Sun alters the DNA coding, which results in a new trait in the organism.

8. Radiation from the Sun alters cell structure, which results in a new DNA code and new, abnormal traits.

C. Inhalation of chemical pollutants in the air alters cell respiration, which produces a new, abnormal protein.

D. Exposure to chemical pollutants alters the base sequences in DNA, which introduces a new, abnormal trait in the organism.

E. Carcinogenic compounds in cigarettes alter amino acid sequences, which introduces a new, abnormal protein in the organism

Answer 1

The three statements that describe how mutations in DNA can occur are:

A. Radiation from the Sun alters the DNA coding, which results in a new trait in the organism.
D. Exposure to chemical pollutants alters the base sequences in DNA, which introduces a new, abnormal trait in the organism.
E. Carcinogenic compounds in cigarettes alter amino acid sequences, which introduces a new, abnormal protein in the organism.

These statements correctly indicate how environmental factors (like radiation and chemical pollutants) can lead to mutations in DNA, which ultimately can affect traits or protein functions in organisms.