The pie chart shows the estimated composition of a genome - Scottish Highers Biology - Question 6 - 2022
Question 6
The pie chart shows the estimated composition of a genome.
The genome is estimated to contain 3200 million base pairs.
Calculate how many base pairs code for protei... show full transcript
Worked Solution & Example Answer:The pie chart shows the estimated composition of a genome - Scottish Highers Biology - Question 6 - 2022
Step 1
Calculate total base pairs coding for protein
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Answer
Based on the pie chart, the composition that codes for protein consists of exons and introns. The percentages are as follows:
Exons: 1.5%
Introns: 5.0%
To find the total percentage that codes for protein, we sum these values:
1.5
Next, we calculate how many base pairs this percentage corresponds to in the estimated genome size of 3200 million base pairs:
3200extmillionimes0.065=208extmillionbasepairs
Step 2
Choose the closest match from the options provided
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Answer
The closest option to 208 million base pairs that code for protein is 160 million. Therefore, the answer is option C - 160 million.
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