Incomplete Dominance Teacher Resources

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What happens when two cats collide? It depends on whether they exhibit codominance or incomplete dominance! Genetics learners are briefly introduced to the these two concepts and are given a scenario to solve. This handout can be used in your biology lesson as you are introducing dominance that differs from Mendel's original observations.
Students explore incomplete dominance inheritance by learning about the survivors of the Black Death and completing Punnett Squares.
A two-page worksheet provides seven Punnett squares for practice in determining genotypes and phenotypes. Each is an example of incomplete dominance or codominance. After your bright biologists have mastered Punnett squares, this will take them to the next step. Assign it as homework or use it as an assessment after some time have been invested in these genetics concepts.
In this biology worksheet, students use the information given about genetics and Sponge Bob to complete each section of the sheet. They identify and explain incomplete dominance and use it to help them complete the questions that follow.
What do you get when you cross a purple with a white? Genetics geniuses figure it out with a Punnett square. On this assignment, they must solve crosses for incomplete dominance, codominance, lethal dominance, and sex-linked genes. It is a rare activity as most Punnett square practice pages involve only simple crosses. You will want to include this in your arsenal of genetics homework assignments.
High schoolers draws the child's face and compares "mother's" and "father's" perception of characteristics. One student draws the child's face; partner writes a biography of the child at age 30- what is the child like, what have they accomplished, what are their dreams.... Students discuss how they feel about their parents and their perceptions of parenthood.
A girl without freckles is like a night without stars! On this instructional activity, junior geneticists determine how many of the offspring of a freckle-faced father and a freckelless mother. They also write out answers to questions about Mendel's experiments, incomplete dominance, and codominance. This handout provides a well-rounded review of genetics concepts. Add it to your collection of choice homework assignments.
Students participate in an activity where they flip coins to determine which allele they pass on to the F1 generation and draw the resulting child's face. They identify several inheritance patterns including dominant, recessive, incomplete dominance, polygenic, sex-linked, and epitasis.
Students explore the principles of incomplete dominance and codominance in genes. They apply genetic previously discussed genetic principles to determine solutions to inheritance problems including multiple alleles, incomplete dominance and codominance.
Dive down to Bikini Bottom for a fantastic lesson on heredity! High school scientists make phenotype predictions for various characters based on given dominant and recessive traits. Use the PowerPoint here to review this concept before splitting learners into small groups. They experiment with probability using a coin toss, organizing findings on a worksheet (linked). Next, they conduct a virtual lab to practice completing Punnett Squares and explore another interactive site with a quiz. Synthesize their skills with two Sponge Bob worksheets which, after completed by all groups, can be presented in a jigsaw fashion. Use the final quiz here as assessment.
This PowerPoint jumps right into the details of unusual traits and how they are coded.  The epistasis patterns in Labradors are used as a main example, and many instances of polygenic inheritance malfunctions are explained. All of this should grab your students' attention!
What you will find in this collection of slides is a comprehensive introduction to genetics. It is technically three separate slide shows: the first on general genetics concepts, the second on rules of inheritance, and the third on genetic disorders. Geared toward high school biology, this may provide material for several lectures in your genetics unit. 
A survey of Mendelian genetics is presented through this handout. Biology prodigies answer questions about the Law of Segregation, phenotypic ratios, and dominance. They define genetics vocabulary terms and describe various genetic disorders. Not innovative, but very practical, this worksheet is a good review of genetics concepts. 
The topics in the previous video about dominant and recessive traits are continued here as Sal Khan explains incomplete dominance, the randomness of genotypes and phenotypes, and covers how to calculate probabilities using Punnett squares for one or multiple traits.
In this basics of genetics worksheet, high schoolers review the concepts of genetic inheritance by writing the alleles for genetic traits inherited in offspring. They identify dominant and recessive traits given allele pairs, answer five questions about genetic crosses, practicing monohybrid and dihybrid crosses, and complete sex-linked and incomplete dominance crosses.
In this genetics worksheet, students answer a variety of questions about genotypes, phenotypes, genetic inheritance, and traits. They solve for the probability of genotypes and phenotypes of offspring by completing monohybrid and dihybrid crosses. They answer questions about sex linked traits, incomplete dominance and pedigree charts.
Students study Mendelian Law of Experiments. In this biology lesson, students identify the different traits of crossing Mendel's Pea plant. They discuss the law of segregation as it relates to crossing.
In this genetic disorders activity, students complete punnett squares for six different human genetic disorders. They predict the outcome of the offspring including the phenotypes and genotypes of each.
High schoolers describe the differences between incomplete dominance and codominant alleles, and between multiple alleles and polygenic inheritance. They describe how internal and external environments affect gene expression. They then interpret testcrosses and pedigrees charts.
In this instructional activity, 10th graders produces a different phenotype since the dominance is incomplete. Both parents have a spotted nose. After student have determined traits, they create drawings. Students chart thier respones in the graphich organzier.

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Incomplete Dominance