Advance Animal Science
Lesson Title: Genotypes, Phenotypes and the Punnett Square
Unit:
TEKS: 130.7 (c) (7) (A)
OBJECTIVES
The student shall be able to:
1.
2.
3.
4.
5.
Explain Gregor Mendel’s laws of inheritance
Discuss the difference between genotypes and phenotypes
Label the three types of genotypes
Draw and label a Punnett square
Predict outcomes of a Punnett square
TEACHING MATERIALS, TOOLS, AND EQUIPMENT
PPT: Mendel’s Law of Inheritance
HO: Notes Page
WS: Phenotypes and Genotypes
And Activity.
TEACHING PROCEDURE
Interest Approach/Anticipatory Set
Teacher Notes
Advance Animal Science
Day 1:
Since this an advanced animal science course students will have
already obtained previous knowledge of basic terms from a regular
animal science course at a lower grade level.
A previous knowledge of animal breeds and characteristics of these
breeds will be used to convey the knowledge in this lesson.
A lecture of the terms and ides:



Mendel’s laws of inheritance
Genotypes
Phenotypes
Will allow students to understand how these terms are applied and
allow a more in depth knowledge and process involved in this
lesson.
Teaching Plan and Strategy / Presentation of New Material
Lecture only lesson with
a review / homework
worksheet to be
completed upon
finishing of this lesson.
Teacher Notes
Day 1:
Objective1:
 Understand Gregor Mendel’s laws of inheritance
PowerPoint
Talk about Mendel’s begging’s
Note packets
Mendel’s experiment
Worksheet
The terminology Mendel used.
Punnett Square
graph to fill out
Objective 2:
 Discuss the difference between genotypes and phenotypes
Define and discuss the two types
Dominant and recessive genes
Advance Animal Science
Objective 3:

Label the three types of genotypes
homozygous dominant, heterozygous, homozygous recessive
Activity:
Have the student’s pair up and discuss what their offspring will
look like. Discover the allele’s for the traits.
ENGAGEMENT
Have the students understand the traits they have are from both parents
EVALUATION
Do the quick activity and make sure they understand the dominant and recessive.
ADDITIONAL MATERIALS
Computer, projector, projector screen, notes, worksheets, colored pencils, markers, or crayons.
©Texas Education Agency, 2011