Question

question 13 (1 point) the bulb in tanning produce ultraviolet (uv) radiation, which has enough energy to damage skin cells. most of the damage done by uv radiation occurs when nucleic acid molecules in skin absorb the radiation. the information above supports the hypothesis that uv radiation causes: an increase in the number of dna mutations in a cell. a decrease in the number of chromosomes present in a cell. an increase in blood ph. a decrease in the ability of blood to carry oxygen.

Explanation:

Nucleic acids include DNA. When skin - cell nucleic acid molecules absorb UV radiation and get damaged, it can lead to DNA mutations. There is no connection between UV - radiation absorbed by skin cell nucleic acids and changes in chromosome number, blood pH, or blood's oxygen - carrying ability.

Answer:

An increase in the number of DNA mutations in a cell.