The Mutation That Causes Sickle Cell Disease

question 21

Multiple Choice

The mutation that causes sickle cell disease

• A)occurs in the same gene that,when mutant in a different way,causes beta thalassemiA.
• B)deletes two contiguous DNA bases.
• C)results in a single DNA base change that does not alter the encoded amino acid.
• D)changes a glutamic acid to a valine in the alpha globin gene.

---

Definitions:

Accounts Receivable

Money owed to a business by its clients or customers for goods or services that have been delivered but not yet paid for.

Bank Reconciliation

involves comparing a company's bank account records to its financial records to identify discrepancies and ensure accuracy in financial statements.

Invoices

Documents issued by a seller to a buyer that list goods or services provided and the amount due for payment.

Cash Refunds

Payments returned to customers for various reasons, such as returns or overcharges.