In Lake Malawi Cichlid Fish, One Can Observe Two Color

question 38

Essay

In Lake Malawi cichlid fish, one can observe two color variants, Black Barred (BB) and Orange Blotch (OB). Sex in these fish is not determined by a sex chromosome but by a gene on an autosome, which produces either males or females. Both of these phenotypes are controlled by one biallelic locus each. OB females have a selective advantage in terms of their survivability: the OB phenotype allows females to blend into their background. OB males have a selective disadvantage because their reproductive coloration is disrupted and they have little mating success. How would this process influence the association of alleles at the color locus and sex-determining locus?

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Definitions:

Activity-Based Costing

An accounting method that assigns costs to products or services based on the activities they require, improving accuracy in assigning costs.

Overhead Cost Allocation

The process of spreading out indirect costs (overheads) to different departments or products within a company, aimed at determining true costs of products or services.

Activity-Based Costing

A method of accounting where costs are assigned based on the activities and processes that contribute to the production of a product or service.

Activity Cost Pool

A grouping of all the costs associated with a particular activity, used in activity-based costing.