A Researcher Is Studying the Expression Pattern of a Particular

question 56

Multiple Choice

A researcher is studying the expression pattern of a particular gene.  Messenger RNA is isolated from several tissues, subjected to electrophoresis, blotted, and probed with radiolabeled DNA containing sequences from exon 4 from that gene.  An x-ray film is then placed over the blotting membrane, with the results of the autoradiogram shown below:
Which of the following best explains the autoradiogram findings in the different tissues?

• A)Alternate RNA splicing
• B)DNA rearrangement
• C)DNA mutation
• D)Enhancer effect
• E)Transcription factor effect

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Definitions:

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Attitudes that are consciously recognized and expressed by individuals.

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Characteristics or norms that are identified and accepted by a particular society or group based on shared values and beliefs.

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Normative guidelines for behavior and understanding in various social contexts that are learned and shared within a cultural or social group.

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The societal, ethnic, and cultural background that influences an individual's behavior, perceptions, and interactions with others.