The Pedigree Shown Here Pertains to a Trait Due to a Rare

question 132

Multiple Choice

The pedigree shown here pertains to a trait due to a rare, X-linked recessive mutation. Individual 1 has an affected brother, but the genotypes and phenotypes of individuals 1-4 are unknown. What is the probability that individual 1 is heterozygous? What is the probability that individual 3 is heterozygous? What is the probability that individual 4 is affected?

• A)1/2; 1/4; 1/4
• B)1/2; 1/2; 1/2
• C)1/2; 1/2; 1/4
• D)1; 1/2; 1/2
• E)1; 1/4; 1/2

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Definitions:

Operating Section

Part of an income statement that discloses revenues and expenses related directly to the core business operations.

Direct Method

A cash flow statement approach that lists major payments and receipts within operating activities directly.

Noncash Accounts

Accounts that represent transactions not involving physical cash, such as depreciation, amortization, or accruals.

Direct Method

A cash flow statement preparation approach that lists major operating cash receipts and payments, providing a clearer view of cash flow sources and uses.