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Neanderthal or Denisovan? Based on the information given in the article, would it be possible to classify Denisovans as a separate group from Neanderthals without using DNA analysis? Justify your response - VCE - SSCE Biology - Question 10 - 2019 - Paper 1
Question 10
Neanderthal or Denisovan? Based on the information given in the article, would it be possible to classify Denisovans as a separate group from Neanderthals without u... show full transcript
Worked Solution & Example Answer:Neanderthal or Denisovan? Based on the information given in the article, would it be possible to classify Denisovans as a separate group from Neanderthals without using DNA analysis? Justify your response - VCE - SSCE Biology - Question 10 - 2019 - Paper 1
Step 1
Based on the information given in the article, would it be possible to classify Denisovans as a separate group from Neanderthals without using DNA analysis? Justify your response.
Answer
It would not be possible to classify the Denisovans as a separate group from Neanderthals based solely on the information provided in the article. This is because both groups are extinct, making it challenging to assess their differences. Without DNA analysis, one cannot determine the genetic lineage or the potential fertility of any hybrid offspring between the two groups. The absence of definitive physical or morphological evidence further complicates such classifications.
Step 2
Explain why the scientists chose to sequence the nuclear DNA for this sample.
Answer
Scientists opted to sequence nuclear DNA instead of mitochondrial DNA because nuclear DNA contains the complete set of genetic information from both parents, while mitochondrial DNA is inherited only from the mother. By sequencing nuclear DNA, researchers gain a more comprehensive understanding of the individual's genetic heritage and are able to make more accurate comparisons across lineages.