Which of the Following Is True About Down Syndrome

question 3

Multiple Choice

Which of the following is true about Down syndrome?

• A)The risk increases with increasing maternal age.
• B)It causes a severe clotting defect.
• C)Paternal age has no effect on the risk.
• D)It inevitably results in miscarriage in early pregnancy.

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Definitions:

Color Constancy

Perceiving familiar objects as having consistent color, even if changing illumination alters the wavelengths reflected by the object.

Surrounding Objects

Physical items or entities located in the immediate environment around a person or the focus of attention.

Lightness Constancy

The ability of the human visual system to perceive the whiteness, greyness, or blackness of objects under varying lighting conditions as unchanging.

Reflected Light

Light that bounces off surfaces instead of being absorbed, which allows objects to be visible to the human eye.