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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 on the available fossil samples. Both groups are extinct, making it challenging to definitively determine if they could produce fertile offspring. Without DNA analysis, distinguishing between the two based solely on morphological characteristics is inadequate.
Step 2
Explain why the scientists chose to sequence the nuclear DNA for this sample.
Answer
Scientists opted to sequence the nuclear DNA instead of mitochondrial DNA because nuclear DNA contains the complete genome, inherited from both parents, which provides more comprehensive genetic information. In contrast, mitochondrial DNA is only inherited from the mother, offering a limited view of ancestry.