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Unit Plan
Unit Author
First and Last Name:
Peter Berry
School District:
Middletown
School Name:
Middletown High School
School City, State:
Middletown, CT
Unit Overview
Unit Plan Title:
Fundamentals of Genetics and Inheritance
Curriculum-Framing Questions
Essential Question
Unit Questions
How are traits passed from one generation to the next?
1. Why do traits often appear to skip a generation,
disappearing in one, and then reappearing.
2. Can you predict what traits offspring will have?
3. What must happen to the genetic material in an
organism when sex cells (gametes) are formed?
4. How many types of offspring would result from
crossing organisms that were heterozygous for two
recessive traits?
Unit Summary:
This unit will introduce students to the concept of “blending” to explain inheritance and Gregor
Mendel’s experiments showing that individual factors (genes) that do not blend control each
trait. The concepts of dominant, recessive, co-dominant, and incomplete dominance, alleles
of genes, independent assortment, and genotype versus phenotype will be covered.
Subject Area(s): Click box(es) of the subject(s) that your Unit targets
Business Education
Engineering
Home Economics
Language Arts
Music
School to Career
Social Studies
Drama
Foreign Language
Industrial Technology
Math
Physical Education
Science
Technology
Other:
Other:
Other:
Grade Level: Click box(es) of the grade level(s) that your Unit targets
K-2
6-8
3-5
9-12
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ESL
Gifted and Talented
Resource
Other:
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Targeted State Frameworks/Content Standards/Benchmarks:
State Standard 6: Cycles of Life: Students will recognize patterns and products of genetics
and evolution: Compare and contrast Mendel’s laws (segregation and independent
assortment) of heredity. Explain how new heritable characteristics can result from new
combinations of genes.
Student Objectives/Learning Outcomes:
Content:
-Compare and contrast dominant, recessive, co-dominant and incomplete dominant traits.
-Describe the relationship between genes and alleles.
-Describe the experiments of Gegor Mendel.
-Evaluate the use of peas for research in inheritance.
Process:
-Predict the ratios of phenotypes and genotypes in monohybrid and dihybrid crosses.
-calculate the probabilities of results of different crosses.
-Observe and analyze the results of dominant and recessive crosses in class activity
Product:
-Produce Punnett squares for F1and F2 generations of dominant and recessive traits.
-Produce Punnett squares for F1 and F2 generations of dihybrids.
-Develop a pedigree for a dominant/recessive trait.
Procedures:
Students will study Mendel’s pea experiments, and the resulting inheritance patterns.
Students will use Punnett squares to predict the ratios of offspring from various genetic
crosses. Students will complete a project to demonstrate their understanding of inheritance
patterns.
Approximate Time Needed:
10 45 minute classes and 2 90 minute lab periods
Prerequisite Skills:
Understanding of DNA molecular structure
Materials and Resources Required For Unit
Technology – Hardware: (Click boxes of all equipment needed)
Camera
Laser Disk
Computer(s)
Printer
Digital Camera
Projection System
DVD Player
Scanner
Internet Connection
Television
VCR
Video Camera
Video Conferencing Equip.
Other:
Technology – Software: (Click boxes of all software needed.)
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Database/Spreadsheet
Desktop Publishing
E-mail Software
Encyclopedia on CD-ROM
Image Processing
Internet Web Browser
Multimedia
Web Page Development
Word Processing
Other:
Printed Materials:
Modern Biology, Holt, Rinehart, and Winston, 2002
Supplies:
Access to computers with internet access. Projector for
PowerPoint presentations.
Internet Resources:
Various depending on project created. See references.
Others:
Animal breeders could be invited in to describe breeding
practices/considerations.
Accommodations for Differentiated Instruction
Resource Student:
Storyboard for PowerPoint presentation is available for
additional guidance. Additional tome may be provided for
completion of assignments.
Non-Native English
Speaker:
Class time in the ESL resource room can be provided for
students for whom English is not their primary language.
Gifted Student:
Students may use two traits that independently assort to
describe the resulting phenotypes.
Student Assessment:
Students will create a webpage, publication, or PowerPoint
presentation that will demonstrate their understanding of the
basic concepts of dominant and recessive inheritance.
Key Word Search:
Gene, allele, dominant, recessive, parental generation,
Mendel, peas
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