Which of the following is not true about dna?

a.) the four nitrogenous bases are adenine, guanine, uracil, and cytosine.
b.) dna is made up of monomers called nucleotides.
c.) the structure of dna is a double helix.
d.) deoxyribose is a sugar found in dna.

I think the answer you are looking is

A. the four nitrogenous bases are adenine, guanine,uracil, and cytosine.

or

C. the structure of DNA is a double helix.

(im not sure if its correct)

answer; ///i believe that the correct answer is (a) specialized cells)

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.