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Chromosomes are DNA structures in the nucleus of a cell - VCE - SSCE Biology - Question 7 - 2007 - Paper 1
Question 7
Chromosomes are DNA structures in the nucleus of a cell. The ends of chromosomes are called telomeres. Some changes in the DNA of these telomeres can trigger the de... show full transcript
Worked Solution & Example Answer:Chromosomes are DNA structures in the nucleus of a cell - VCE - SSCE Biology - Question 7 - 2007 - Paper 1
Step 1
Outline one advantage of being able to detect early changes in telomere DNA.
Answer
One advantage of detecting early changes in telomere DNA is that it can lead to the cancer being treated earlier. This could provide patients with a better chance of recovery, as early intervention is often key in managing cancer effectively.
Step 2
Is the doctor likely to be concerned or not concerned about the change in the telomere DNA of this patient? Explain your answer.
Answer
The doctor is not likely to be concerned about the change in the telomere DNA of this patient because the change in the DNA sequence results in the same amino acid sequence. Since the original sequence AATCGTCCAGGG does not lead to the production of a different amino acid when translated, it is likely that there will be no adverse effects associated with this change.
Step 3
Name one application of molecular biology in medicine that you have studied this year and the significance of its use.
Answer
One application of molecular biology in medicine is the design of a drug or vaccine which is specific to the target cell or which does not cause harm to healthy body cells or natural flora. This is significant as it enhances the effectiveness of treatment while minimizing side effects, leading to better patient outcomes.