What Is the Cause of Down Syndrome

question 92

Multiple Choice

What is the cause of Down syndrome?

• A) an extra chromosome on the 21st pair
• B) an extra X chromosome on the 23rd pair
• C) neurotransmitter excesses
• D) neurotransmitter deficiencies

---

Definitions:

Cash Balances

The amount of cash or cash equivalents that a company or an individual holds.

Compensating Balances

Minimum balances that a business must maintain in its bank account as part of a borrowing arrangement with the bank.

Precautionary Balances

Cash balances held in reserve for random, unforeseen fluctuations in cash inflows and outflows.

EOQ Model

Economic Order Quantity, an inventory management model that determines the optimal order quantity to minimize total inventory costs, including holding and ordering costs.