Multiple choice

The Y chromosome is the sex-determining chromosome in many species. The following chromosomal states are associated with changes in the Y chromosome. Which of the following genetic disorders occurs due to the swapping of genetic material between chromosomes?

  1. 47, XXY syndrome

  2. Y chromosome infertility

  3. 47, XYY syndrome

  4. 48, XXYY syndrome

  5. 46, XX syndrome
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E Correct answer
Explanation

This state results from an abnormal swap over of genetic material between chromosomes. This swap over occurs as a chance event in the father of an affected person during the formation of sperm cells. The translocation affects the gene in charge that is SRY for development of a foetus into a male.

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