If a Perfectly Predicts a Medium-Sized US, It Will Block

question 62

Multiple Choice

If A perfectly predicts a medium-sized US, it will block B unless the US is increased, and then we can observe unblocking. However, if the organism experiences A and B together with the same moderate US, the larger US will no longer produce unblocking when it is paired with AB. How well does that effect support the Rescorla-Wagner model?

• A) This effect is predicted by and strongly supports the Rescorla-Wagner modele.
• B) This effect does not support the Rescorla-Wagner model, which predicts that B should become inhibitory.
• C) This effect does not support the Rescorla-Wagner model, which predicts that B should be unblocked normally.
• D) This effect is predicted by and supports the Rescorla-Wagner model because lambda represents the magnitude of the US and is easily modified.

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Definitions:

Transcription Factors

Proteins that bind to specific DNA sequences, thereby controlling the rate of transcription of genetic information from DNA to messenger RNA.

Gene Expression

The process by which information from a gene is used in the synthesis of a functional gene product, often proteins, which can affect the phenotype of the organism.

Operon

A group of genes in prokaryotes that are transcribed together and regulated by a single promoter and operator sequence, facilitating coordinated expression of genes with related functions.

Transcription

The process of copying a segment of DNA into RNA, particularly messenger RNA, paving the way for protein synthesis in cells.