In Mammals, the Nuclei Resulting from the Union of the Sperm

question 60

Multiple Choice

In mammals, the nuclei resulting from the union of the sperm and the egg are first truly diploid at the end of the

• A) acrosomal reaction.
• B) completion of spermatogenesis.
• C) initial cleavage.
• D) activation of the egg.
• E) completion of gastrulation.

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Definitions:

Contribution Margin

The difference between sales revenue and variable costs, indicating how much revenue contributes to fixed costs and profits.

Fixed Costs

Costs that do not vary with the level of production or sales, such as rent, salaries, and insurance premiums.

Incremental Basis

A method of calculating changes in costs or benefits that result from small variations in the quantity of output or input.

Differential Basis

A method of calculating or analyzing the difference in costs or revenues between two alternative actions.