The monomer units of DNA are nucleotides. Each of these consist of  a 5-carbon sugar which is deoxyribose, a nitrogen containing base  attached to the sugar and a phosphate â¦ group. Judy Olmsted. 78,524 Contributions. Retired college science professor. DNA is a nucleic acid. Nucleic acids are polymers of nucleotides (also called mononucleotides).   The nucleotides in DNA are deoxyribonucleotides.   Each nucleotid â¦ e consists of a pentose (5-carbon) sugar, a nitrogen-containing base and a phosphate group.
The sclera (from the Greek skleros, meaning hard), also known as the white of the eye, is the opaque, fibrous, protective, outer layer of the eye containing collagen and elastic fiber.he sclera forms the posterior five-sixths of the connective tissue coat of the globe. It is continuous with the dura mater and the cornea, and maintains the shape of the globe, offering resistance to internal and external forces, and provides an attachment for the extraocular muscle insertions.
The sclera of the eye is the large white area on the outsides of the iris. It can appear red when blood vessels within the eye dilate giving the so called blood shot appearance. The sclera can turn yellow when the body has high levels of bilirubin in it. This can be caused by blood diseases or by liver diseases. When the sclera turns blue, it usually means nothing. However, it can be a sign of a syndrome called osteogenesis imperfecta, a disease that makes the bones very brittle. The blue sclera is usually an non-important finding, as most children with this disease get multiple broken bones.