Which recent discovery led to a new understanding of how genetic mutations increase the risk of cancer?
double helix structure of dna
brca1 and brca2 genes
nucleic acid monomers
chemical composition of proteins

one part of the electromagnetic spectrum that arrives on earth as solar radiation from the sun is the visible spectrum. wavelengths of the visible spectrum combine to form what we refer to as

answer - d) ultraviolet radiation.

violet /   380–450 nm / 668–789 thz

violet is number 1 in the chart of visible light.