Maternal PKU Can Result in Serious Effects in Fetuses

question 47

Multiple Choice

Maternal PKU can result in serious effects in fetuses.This problem occurs because:

• A) the fetus is homozygous for PKU and therefore cannot metabolize phenylalanine.
• B) the fetus is usually homozygous dominant and therefore has PKU.
• C) the mother is heterozygous for PKU and therefore cannot metabolize phenylalanine.
• D) the mother is homozygous dominant for PKU and cannot metabolize phenylalanine.
• E) the mother is homozygous recessive and cannot metabolize phenylalanine.

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Definitions:

Flashbulb

Refers to vivid, detailed memories of significant events, which seem to be recorded in the mind just as a flashbulb captures a moment in photography.

Schema

An individual’s mental representation that summarizes her knowledge about a certain type of event or situation.

Retrieval Cues

Stimuli that aid in the recall of memories, acting as triggers that bring memories to consciousness.

Loci

Specific locations or positions in genetics or memory techniques, referring to gene locations on chromosomes or mnemonic spatial locations, respectively.