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vazorg [7]
3 years ago
13

What is the difference between a single gene disorder, multifactorial disorder and a chromosomal abnormality?

Biology
1 answer:
photoshop1234 [79]3 years ago
5 0
There are approximately 25,000 genes contained on the 46 chromosomes in each cell of the human body. This means that one chromosome contains thousands of genes. A person can have normal chromosomes in number and structure, but still have a disease or condition caused by a mutation in one or more of the genes on the chromosomes. A single gene defect usually does not cause the chromosome structure or number to be abnormal. Similarly, a person can have normal genes; however, if the person has extra copies of genes due to a chromosome abnormality, then those extra copies can cause the genes to not work properly.
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