The cellular component that is most susceptible to radiation injury is the a. DNA. b. membrane. c. ribosomes. d. RNA.

A. DNA.

Explanation:

Mutations which are either acquired or somatic, are the alteration of the nucleotide sequence of the genome of a DNA.

These changes can be caused by environmental factors such as ultraviolet radiation from the sun, or can occur if an error is made as DNA copies itself during cell division.

DNA is most succeptible to radiation.

Explanation:

DNA is most succeptible to radiation because;

The radiations may break the Double strand of DNA. Base pairs of DNA or sugar phosphate backbone may be broken down by radiations (X-ray, aplha and beta particles). The hydrogen bonding between nitrogen bases may be affected by radiation.

The radiations may cause mutations in DNA which effect the cell survival or correct replication.