Why Is Mitochondrial DNA Inherited Only from Mothers and Not

question 202

Multiple Choice

Why is mitochondrial DNA inherited only from mothers and not fathers?

• A) Sperm mitochondria fuse into the mother's egg but disintegrate soon after.
• B) Sperm cells do not need mitochondria for their function and so have none.
• C) Sperm do not contribute their mitochondria to the zygote during fertilization.
• D) Mitochondria of sperm are defective and not functional due to mutation.
• E) Males do not have mitochondrial DNA in any of their cells,including sperm.

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Definitions:

High-Low Method

A technique used in cost accounting to estimate fixed and variable costs associated with production or operations.

Variable Cost

Costs that change directly and proportionally with the level of output or production volume, such as raw materials and direct labor.

Electrical Cost

The expense associated with the consumption of electricity in a business or home.

Comparative Income Statement

A financial statement that presents the revenues, expenses, and net income for multiple periods side by side for comparison.