Multiple choice

Upon chromosomal analysis, it was confirmed that Anuja's youngest son is suffering from a genetic disorder in which the defective gene is present on chromosome 7. The boy must be suffering from ________.

  1. single gene disorder

  2. dominant disorder

  3. mitochondrial disorder

  4. chromosome disorder

  5. multifactorial genetic disorder
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A Correct answer
Explanation

This type of human genetic disorder occurs when a change happens in part of a gene's DNA sequence. Genes make proteins, and a mutation in the gene will result in the protein not being able to function properly. Cystic fibrosis is an example of a single-gene disorder. Patients with the condition have a defective gene on chromosome 7 called CFTR.

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