Dax, Age 3, Often Makes Errors in His Speech

question 15

Essay

Dax, age 3, often makes errors in his speech. For example, he'll tell his mother that his "foots" are tired when he wants to be carried. While watching a cartoon, he exclaimed, "Ew! Those are mices!" And last week, he told his grandfather that he "goed to the swimming park" with his babysitter. Explain the type of speech errors that Dax is demonstrating. Should his parents and caregivers criticize his speech in order to correct it? Why or why not?

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Definitions:

P Generation

The parent generation in a genetic cross, from which offspring are derived in subsequent generations.

Testcross

Cross, between an individual with a dominant phenotype and an individual with a recessive phenotype, to determine whether the dominant individual is homozygous or heterozygous.

Dominant Phenotype

The phenotype or trait that is expressed in an organism's appearance when two different alleles or versions of a gene are present.

Homozygous Recessive

A genetic condition where an individual possesses two identical recessive alleles for a particular trait, resulting in the expression of the recessive phenotype.