What Is Unusual About the Inheritance of Retinoblastoma, Given That

question 29

Multiple Choice

What is unusual about the inheritance of retinoblastoma, given that it appears to be inherited as a dominant trait?

• A)All children who inherit one copy of the RB deletion develop retinoblastoma.
• B)Not all children who inherit the RB deletion develop retinoblastoma.
• C)No children who inherit the RB deletion develop retinoblastoma.
• D)Only boys appear to develop retinoblastoma.
• E)Only girls appear to develop retinoblastoma.

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Definitions:

Molecule

The tiniest unit of a chemical substance that maintains both the substance's composition and its chemical characteristics, and can exist on its own.

Enantiomers

Molecules that are mirror images of each other but cannot be superimposed, much like left and right hands.

Separated

To cause to move or be apart; in a scientific context, often refers to the process of dividing or isolating components based on their physical or chemical properties.

Gas Chromatography

An analytical technique used to separate, identify, and quantify compounds in a mixture by passing them through a column filled with a stationary phase while being propelled by a gas.