A Couple Who Does Not Have Cystic Fibrosis but Are

question 12

Multiple Choice

A couple who does not have cystic fibrosis but are both heterozygous has already had three girls with cystic fibrosis, and are hoping to have a normal child for their fourth. What are the chances that the fourth child will be a normal male?

• A) 0
• B) 1/8
• C) 1/4
• D) 3/8
• E) 1/2

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Definitions:

Alteration

A change or adjustment made to something, which can modify its appearance, function, or condition.

Charge Account

An arrangement allowing customers to purchase goods or services on credit and settle the balance periodically, without immediate payment at each transaction.

Maker

The individual or entity that creates or signs a negotiable instrument, committing themselves to pay a specified amount of money to the payee or holder.

Primarily Liable

The primary obligation or responsibility to fulfill a debt or legal duty before others are considered liable.