According to Piaget,the Stage of Cognitive Development Between Two and Seven

question 80

Multiple Choice

According to Piaget,the stage of cognitive development between two and seven years of age,in which the individual becomes able to use mental representations and language to describe,remember,and reason about the world,though only in an egocentric fashion,is the __________ stage.

• A)concrete operations
• B)preoperational
• C)sensorimotor
• D)formal operations

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Definitions:

Recombinant Plasmid

A circular DNA molecule engineered to carry specific gene sequences, used in genetic engineering to clone or express particular genes.

DNA Probe

A labeled single-stranded DNA fragment used to detect a gene of interest in a hybridization experiment.

cDNA Libraries

Collections of complementary DNA (cDNA) molecules synthesized from the messenger RNA of an organism, used to study gene expression and protein function.

mRNA Template

A strand of RNA that carries genetic information from DNA in the nucleus to the cytoplasm for protein synthesis.