Test Item Analysis Lesson: Who Owns Your Genes

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Test Item AnalysisLesson Who Owns Your Genes?

• Teacher Verna Lang, Biology AP Biology 9-12
• verna.lang_at_cmcss.net
• School Kenwood High School, Clarksville, TN
• Test Source New York State Biology Regents Exam
  (2001)

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Step II Standards Alignment Connections to
Curriculum Framework Content Clarification Strand
Map

• Step I Item Analysis
• Standardized Test Item
• Test Item Type
• Test Item Structure
• Embedded Content and Skills

Step III Instructional Alignment Lesson Plan
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Step I Standardized Test Item

• In 1994, a new tomato variety that ripens slowly
• was developed by a laboratory technique that
• did not involve methods of natural reproduction.
• This new variety contains a section of a DNA
• molecule not found in the tomato from which it
• was originally developed. Which technique was
• most likely used to develop this new variety of
• tomato?
• 1 amniocentesis 3 genetic engineering
• 2 cross-pollination 4 karyotyping

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Step I Test Item Type

• 1. What type of test item did you select?
• Multiple Choice

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Step I Test Item Structure

• 1. For a Multiple Choice Test Item
• Stem Describes the production of a new species
  of tomato and asks what method was used for the
  development of this tomato.
• Diagram None for this question.
• Distractors 1,2,4. Genetic terms, but not
  appropriate.
• Correct answer choice 3. Genetic engineering
• What makes this the correct choice? This is the
  only choice where human intervention in the genes
  of the tomato is possible.

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Step I Embedded Concepts Process Skills

• Concepts and Big Ideas
• DNA structure
• Genes
• Manipulating genes by bioengineering
• Process (Inquiry or problem solving) Skills
• Students will be able to deduce that the
  processes involved in the description of the
  development of the new variety of tomato in the
  question point to genetic manipulation through
  genetic engineering.
• Webbs Knowledge Level
• Skill/Concept

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Step II Connections to State Curriculum
Framework

• CLE 3210.4.7 Assess the scientific and ethical
  ramifications of emerging genetic technologies.
• SPI 3210.T/E.3 Evaluate the overall benefit to
  cost ratio of a new technology.
• SPI 3210.4.9 Evaluate the scientific and ethical
  issues associated with gene technologies genetic
  engineering, cloning, transgenic organism
  production, stem cell research, and DNA
  fingerprinting.

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Step II Content Clarification

• Content Clarification

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Step II Atlas of Science Literacy

• Strand Map Source

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Step III Instructional Alignment

• Structured Controversy Lesson Plan
• Who Owns Your Genes?

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