Answer:
B. Antibodies react specifically with an antigen.
Explanation:
Serological tests are blood tests that look for antibodies in your blood. They can involve a number of laboratory techniques. Flucculation tests are based on the precipitation that takes place when antibody and specially prepared antigens are mixed together
The answer is C. Chromsomes make up part of the DNA and carry the information needed to code for the DNA's proteins.
Carbohydrates, they break down easily
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