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It is possible to conclude from this data that A - VCE - SSCE Biology - Question 18 - 2002 - Paper 1
Question 18
It is possible to conclude from this data that A. a human is more closely related to a mouse than to a rabbit. B. the variation between chimpanzees and humans occurs... show full transcript
Worked Solution & Example Answer:It is possible to conclude from this data that A - VCE - SSCE Biology - Question 18 - 2002 - Paper 1
Step 1
A. a human is more closely related to a mouse than to a rabbit.
Answer
This statement cannot be conclusively supported by the given data. While humans and mice share some genetic similarities, mammals like rabbits also share significant genetic similarities with humans. Therefore, this conclusion cannot be made.
Step 2
B. the variation between chimpanzees and humans occurs in a region of the globin gene which would code for amino acids.
Answer
The statement requires specific evidence from the data regarding the globin gene and amino acid coding. Without that information, this conclusion cannot be confidently drawn.
Step 3
C. the variation in the intron sequence between human and mouse would account for some of the differences in the amino acid sequence.
Answer
This statement could be plausible, as variations in non-coding regions (introns) can influence gene expression and ultimately the amino acid sequence, but again, definitive data is needed to support this claim.
Step 4
D. the comparison between rabbit and human indicates that the differences in their DNA did not always make a difference to the amino acid.
Answer
This statement is accurate. It reflects the concept that not all genetic differences result in functional differences in protein structure, aligning with the idea that some DNA variations may be neutral.