An Infant Sitting on the Floor and Banging Various Blocks

question 105

Multiple Choice

An infant sitting on the floor and banging various blocks together to produce differing sounds is demonstrating what Piaget termed:

• A) tertiary circular reactions.
• B) coordinating secondary schema.
• C) primary circular reactions.
• D) secondary circular reactions.

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Definitions:

Heterozygous

A genetic condition where an organism has two different alleles of a gene, one inherited from each parent.

Huntington Disease

A genetic disorder that causes the progressive breakdown of nerve cells in the brain, leading to physical and mental deterioration.

Genotypic

Referring to the genetic constitution of an organism, including all of its genes and alleles, which influences its phenotypic traits.

Autosomal Dominant

A pattern of inheritance where a trait is expressed if at least one copy of the dominant allele is present on a non-sex chromosome.