A sample of Chargaff's data on the DNA base composition in various species is provided. Discuss several conclusions that may be drawn from this data? 
Definitions:
Contribution Margin
The amount of revenue remaining after deducting variable costs, used to cover fixed costs and generate profit.
Sales Mix
The relative proportion of different products or services sold by a company, significantly influencing its overall profitability.
Existing Sales
The volume or amount of sales that a company has already achieved within a specific period, prior to any new sales efforts or campaigns.
Contribution Margin
The amount remaining from sales revenue after variable costs have been deducted, indicating the portion of sales available to cover fixed costs and generate profit.
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