In this dihybrid cross worksheet, students complete two punnett squares for the cross of two traits. They determine the genotypes, phenotypes and phenotypic ratios of the offspring.

Discover possible genetic outcomes through Punnett Squares. Learners continue studying genetic traits in the 10th lesson in the 17-part series. After determining the father of Sparky's kittens, scholars now attempt to predict the traits...

Two fish appear different, but how do scientists determine their genotypes? Scholars practice performing test crosses to determine the genotypes of fish given their phenotypes. They answer in-depth comprehension questions and complete...

Explore single-gene traits in humans. After viewing a video introducing genetic vocabulary, individuals identify their phenotype and possible genotypes of specific traits. They consider both dominant and recessive traits. This is the...

You may not know if that zebrafish in your fish tank is a model citizen—but it is definitely a model organism! What can we learn about ourselves from a tiny zebrafish? Discover more about the polygenic trait of skin color through a...

Eighth graders interpret the genotypes and phenotypes, then pair up chromosomes.

Students participate in a genetics activity in which they determine genotypes and phenotypes for given traits. They work with a partner and create babies based on their genotypes. Once traits for babies are determined, they write...

Sixth graders complete a human traits survey.  In this genetics lesson students read articles and fill out a worksheet on genotype and phenotypes. 

A set of phenotypes is listed for mice, flowers, blood type, and plants. For each, biology buffs analyze the percentages of phenotypes in the offspring and then identify the genotypes of the parents. This is a different approach to...

Practice calculating genetic probability, listing gametes, and identifying genotypes. The worksheet combines short answer questions with practice problems to solve. It would make a revealing review assignment or even a practical pop quiz...

In this short space, it would be impossible to describe the breadth of this seven-page genetics worksheet. Geared toward AP or college biology learners, they explore not only the basic vocabulary and concepts, but also the Law of...

Finally, here is a genetics worksheet that does not include Punnett squares! Designed for a more advanced class, biology learners will compare Lamarck's concept of evolution with Darwin's. They will explore the Hardy-Weinberg equilibrium...

Freddy's Friendly Fruit Market is under attack by fruit flies, and it is up to your aspiring biologists to solve the crime! By reading and analyzing the phenotypes, detectives determine which fly is responsible. This memorable assignment...

Have you ever wondered why you aren't taller or invisible? It all comes down to your dominant and recessive genes. Introduce your class members to genetics with a presentation that includes worksheets for young geneticists to...

Consider the riddle of dragon genetics. Young scientists simulate being dragon parents and determining which traits their child will have. Then they learn of a new relative and must determine how they are related using probability and...

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.

Young scholars investigate a rapid method to render the bacterium Escherichia coli "competent" to uptake plasmid DNA. They demonstrate the phenotypic changes associated with transformation. They perform a cell resuspension from the...

Students explore the mode of inheritance of chromosomes. Given a scenario, students use the Human Genome sheet to determine inherited chromosomes. They illustrate the difference between genotype and phenotype. Students develop a model...

Students build chromosome models using popsicle sticks. In this biology instructional activity, students simulate the Law of Independent Assortment. They use Punnett squares to predict the resulting genotype and phenotype.

Can we find the phenotypes and genotypes of magical ability for the characters in Harry Potter? Of course, but first we need to understand incomplete or blended dominance, co-dominance, multiple alleles, and regulatory genes. This...

By the end of Harry Potter and the Deathly Hallows, we know Harry and Ginny get married, but what will their kids look like? This presentation introduces viewers to Punnett Squares and how to use them to determine both...

Given the phenotypes of offspring in mice, flowers, and human blood type, genetics pupils practice determining the genotypes of the parents. Four short answer questions follow. The entire assignment will require learners to put on their...

What does your class know about GMOs? Are they savvy to selective breeding? Challenge young minds to engineer the greatest crop of all time using a hands-on genetics unit. Learners discover the good and bad details of selective breeding,...

High school learners identify chemical and structural properties of DNA and explain the differences between genotype and phenotype. They develop a scientific investigation to determine the ethnic heritage of a large group of people.