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Students conducted preliminary experiments across different species to analyse their DNA base composition - HSC - SSCE Biology - Question 26 - 2016 - Paper 1
Question 26
Students conducted preliminary experiments across different species to analyse their DNA base composition. The table shows the experimental data collected. Species ... show full transcript
Worked Solution & Example Answer:Students conducted preliminary experiments across different species to analyse their DNA base composition - HSC - SSCE Biology - Question 26 - 2016 - Paper 1
Step 1
% Adenine vs % Guanine Plot
Answer
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Plot the points: Using the grid, plot each species based on their % Adenine and % Guanine values. For example:
- For Species A at (38, 12), place a point on the grid at the intersection of 38% Adenine on the x-axis and 12% Guanine on the y-axis.
- Repeat this for Species B (26, 22), C (40, 32), D (20, 32), and E (33, 18).
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Draw the line of best fit: Once all points are plotted, draw a line that best represents the overall trend of the data points. This line does not need to pass through every point but should show the general direction of the data.
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Label the axes: Ensure that the axes are clearly labeled with '% Adenine' on the x-axis and '% Guanine' on the y-axis.