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A newborn baby was diagnosed with Patau syndrome - VCE - SSCE Biology - Question 29 - 2017 - Paper 1
Question 29
A newborn baby was diagnosed with Patau syndrome. Her karyotype showed three copies of chromosome 13. This is an example of A. frameshift mutation. B. block mutation... show full transcript
Worked Solution & Example Answer:A newborn baby was diagnosed with Patau syndrome - VCE - SSCE Biology - Question 29 - 2017 - Paper 1
Step 1
C. aneuploidy.
Answer
Patau syndrome is associated with an abnormal number of chromosomes, specifically the presence of an extra copy of chromosome 13, leading to a total of three copies instead of the usual two. This condition is classified as aneuploidy, which refers to an alteration in the number of chromosomes in a set. In this scenario, the increased chromosome number is the defining characteristic.