Which of the Following Is Not True of Human MtDNA

question 6

Multiple Choice

Which of the following is not true of human mtDNA?

• A) it encodes all of its own proteins
• B) it can all be traced back to females that lived in Africa 20,000 years ago
• C) it encodes components of the electron transport chain
• D) it encodes all of the rRNA for its own ribosomes
• E) it has a higher mutation frequency than nuclear DNA

---

Definitions:

Uncollectible Accounts

Debts owed to a company that are considered to be uncollectible and are thus written off as a bad debt expense.

Allowance Method

An accounting technique used to estimate uncollectable accounts receivable within a company's financial statements.

Bad Debt Expense

An accounting term representing the amount of revenue considered uncollectible from credit sales.

Allowance for Doubtful Accounts

A contra-asset account that reduces the total receivables balance to reflect the amount that is expected to be uncollectible.