Use the Following Information to Answer the Questions Below

question 114

Multiple Choice

Use the following information to answer the questions below.
A researcher has arrived at a method to prevent gene expression from Drosophila embryonic genes.The following questions assume that he is using this method.
-When the Bicoid protein is expressed in Drosophila,the embryo is still syncytial (divisions between cells are not yet fully developed) .This information helps to explain which observation by Nüsslein-Volhard and Wieschaus?

• A)mRNA from the egg is translated into the Bicoid protein.
• B)Bicoid protein diffuses throughout the embryo in a concentration gradient.
• C)Bicoid protein serves as a transcription regulator.
• D)Bicoid protein determines the dorsoventral axis of the embryo.
• E)Bicoid protein serves as a translational regulator.

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Definitions:

Partial Reinforcement

A learning theory concept where reinforcement is given only a portion of the time a subject gives the desired response, which enhances the resilience of the response.

Continuous Reinforcement

A learning schedule in which every correct response is followed by a reward, facilitating faster learning.

Gradual Reinforcement

A process in operant conditioning where reinforcement is slowly introduced or varied to shape behavior.

Positive Reinforcer

A stimulus that, when presented after a behavior, increases the likelihood of that behavior occurring again.