Photo AI
The following karyotype is from a human baby with a genetic defect - VCE - SSCE Biology - Question 10 - 2010 - Paper 1
Question 10
The following karyotype is from a human baby with a genetic defect. The condition indicated by the karyotype is an example of A. monomy. B. polyploidy. C. inversion... show full transcript
Worked Solution & Example Answer:The following karyotype is from a human baby with a genetic defect - VCE - SSCE Biology - Question 10 - 2010 - Paper 1
Step 1
The condition indicated by the karyotype is an example of
Answer
To determine the condition indicated by the karyotype, one must analyze the number and structure of chromosomes. A typical human karyotype contains 46 chromosomes, arranged in pairs. In this karyotype, there appears to be an extra copy of chromosome 21, indicating that the baby has three copies of this chromosome.
This condition, characterized by the presence of an extra chromosome, is known as trisomy. Specifically, it is referred to as Trisomy 21, which is commonly associated with Down syndrome. Thus, the answer is:
D. trisomy.