It Is Good That Emily Does Not Remember Being a Newborn

question 16

Multiple Choice

It is good that Emily does not remember being a newborn, because she was miserable, vomiting frequently. An X-ray revealed hypertrophic pyloric stenosis. The problem in Emily's digestive system, before surgery helped her, was

• A) an extra stomach.
• B) overgrowth of muscle that blocked the passageway from the stomach to the small intestine.
• C) absence of the pyloris.
• D) a peptic ulcer.

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Definitions:

Codominant

A genetic scenario where two different alleles are expressed equally in the phenotype of heterozygous individuals.

Incomplete Dominance

A genetic phenomenon in which neither allele is completely dominant, resulting in a phenotype that is a blend of the parental traits.

Recessive

A genetic term describing an allele that expresses its phenotype only when its paired allele is identical.

Phenotype

The set of observable characteristics or traits of an organism that result from the interaction of its genotype with the environment.