The Consequences of a Recessive Metabolic Disorder Such as PKU

question 30

Multiple Choice

The consequences of a recessive metabolic disorder such as PKU can be counteracted with a modification in dietary intake,making PKU a good example of

• A) the benefits of having a dominant masking gene.
• B) the benefits of having an unexpressed recessive gene.
• C) how the phenotype and environment interact to affect the genotype.
• D) how the genotype and environment interact to affect the phenotype.

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Definitions:

MMC

Maximum Material Condition, a feature size that contains the maximum amount of material within the specified tolerance limits.

Feature Control Frame

A rectangle used in technical drawings to describe the conditions and tolerances for a geometric control on a feature of a part.

Modifying Symbol

Symbols used in engineering drawings to specify additional requirements or modifications for geometric tolerances.

Parallelism

The condition of being parallel; in geometry, it describes lines, planes, or surfaces that, no matter how far extended, do not meet.