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The correct option is C.
The DNA molecule is made up of four different types of nucleotide bases, these are: thymine, cytosine, guanine and adenine. The arrangement of these nucleotide bases in DNA affect the genetic traits that are eventually formed. The differences that are observed in different individuals is as a result of the different ways in which the nucleotide bases are arranged in DNA molecules.
Erythrocytes, or red blood cells, transport oxygen to various parts of the body. A low RBC count means that the person will not get enough oxygen to different parts of the body. Therefore, symptoms of anemia include lethargy, feeling of fatigue and dizziness.
