Some Organisms Are Under Considerable Strain to Streamline Their Genomes

question 44

Essay

Some organisms are under considerable strain to streamline their genomes for the sake of more efficient operation. As a result, the mitochondria of eukaryotic species have lost the overwhelming majority of their genes, of which several hundred were transferred to the nuclear genome. Yet mitochondria still retain a genome with the capacity to produce several electron transport proteins. Suggest a reason why these energy-generating organelles retained the genes to produce this set of molecules.

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Definitions:

Activity-based Costing System

An activity-based costing system is an accounting method that assigns costs to products or services based on the activities and resources that go into production, providing more accurate cost information.

Measuring Ingredients

Measuring Ingredients involves quantitatively determining the proportions of various components that go into a product, critical in both cooking and manufacturing.

Batch Level Activities

These activities involve costs incurred for every batch produced, regardless of the volume of units in the batch.

Materials Handling

The movement, protection, storage, and control of materials and products throughout manufacturing, warehousing, distribution, consumption, and disposal.