If Your Mother and Father Both Have Cystic Fibrosis, Which

question 58

Multiple Choice

If your mother and father both have cystic fibrosis, which is caused by a recessive allele, the odds of you having cystic fibrosis are ____.

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

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Definitions:

Systemic Blood Vessels

The network of blood vessels that circulate blood to and from the heart and all body parts, excluding the lungs.

Left Ventricle

The chamber of the heart that pumps oxygenated blood out through the aorta to the rest of the body.

Right Atrium

The right upper chamber of the heart that receives deoxygenated blood from the body via the venae cavae.

Fenestrated Capillaries

Capillaries with small pores in their endothelial lining allowing for increased permeability to fluids and small molecules, found in areas requiring extensive exchange such as in kidneys and endocrine glands.