What is a person with an incomplete chromosome missing? A. many genes
B. all genes
C. a body cell
D. a s_x cell

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☆ Option A. (Many genes) ☆

Explanation:

It happens because the chromosomes are made up of DNA, which carries a lot of genes. If the person misses a chromosome,it means that they also miss a part of the DNA that was supposed to be present in that missing chromosome. Each chromosome has different gene pools, so when one chromosome is not there then those genes will also be missing.

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clinically, some people often have repeated allergies, eczema and respiratory infections or other parts of the infection, in this case, in addition to some routine tests such as tests for white blood cells, immunoglobulin series, lymphocyte subsets, etc., the five immune immunoglobulin tests are also necessary.

b is the best answer for this question.