In the MacArthur-Bates Communicative Development Inventories (CDIs), Parents Check Off

question 21

Multiple Choice

In the MacArthur-Bates Communicative Development Inventories (CDIs) , parents check off which words their infants understand or produce. Infants' performance is then compared to performance of a large sample of infants of the same age. The CDIs is an example of

• A) A norm-referenced test.
• B) A naturalistic observation.
• C) A criterion-referenced test.
• D) A baby biography.

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Definitions:

Regulatory Network

A regulatory network is a system of interacting genes, transcription factors, promoters, RNA, and other molecules. It functions like a biological circuit, responding to signals with output that controls the activation of genes during development, the cell cycle, and the activation of metabolic pathways.

Crystallins

Special proteins in the lens of the eye that are responsible for its transparency and refractive properties.

Gene Recruitment

The co-option of a gene for a function different from the gene's original function, contributing to evolutionary novelty.

Promiscuous Proteins

Proteins that can bind to multiple molecular partners with different specificities, playing crucial roles in cellular functions and signaling .