The Variable Portions of Both Heavy and Light Chains Contain

question 53

Multiple Choice

The variable portions of both heavy and light chains contain subregions that are especially variable from one antibody to another; these variable subregions account for the great diversity of antibody specificity. Such portions of both the light and heavy chains are called _________ regions.

• A)hypovariable
• B)hypervariable
• C)hypoconstant
• D)hyperconstant
• E)extremovariable

---

Definitions:

Income Summary

An account to which all revenues and expenses are transferred at the end of an accounting period to compute the net income or loss for the period.

Withdrawals Account

An account in bookkeeping where amounts drawn out from the business by the owner for personal use are recorded.

Revenue Account

An account that tracks the income earned by a company from its operational activities, excluding expenses.

Fees Earned Account

An income account that records the revenue earned from services provided or fees charged.