The Most Direct Way to Detect Down Syndrome in a Fetus

question 24

Short Answer

The most direct way to detect Down Syndrome in a fetus is by ___________.

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Definitions:

Parallel Rows

Lines or sequences of objects placed side by side, keeping the same distance continuously between them.

Retinal Disparity

The slight difference in the visual images that the two eyes perceive, which is important for depth perception.

Relative Luminance

The brightness of a color relative to a standard, often used in digital design and accessibility.

Perceptual Constancy

The brain's ability to recognize that objects are unchanging (in shape, size, brightness, or color) despite shifts in environment or perspective.