Curated OER
Genetic Variability
Using black and white construction paper, evolutionary biologists simulate the classic peppered moth study. They use beans in a frequency and natural selection exercise. Finally, they analyze germinated seeds for variations. All three...
Curated OER
Sexual Reproduction and Meiosis
In this biology worksheet, 9th graders create one chromosome using a red plasticine and another using blue plasticine. Then they illustrate different ways of crossing over, including double crossovers. Students also explain genetic...
Education Development Center
Education Development Center: Crossing Over
This interactive tutorial is about Morgan and his studies with fruit flies. Basic knowledge about genetics is important before trying this one.
New York University
New York University: Sex and Sexual Selection
Describes some mechanisms in reference to the choosing of a mate. Both selection processes of males and of females are described. Discusses group sexual selection models and nonsexual selection models.
San Diego State University
Sdsu: Lesson 2.5: How Do Organisms Reproduce? Meiosis
This site will allow students to grasp the complex concept of meiosis by modeling the process with clay.
CK-12 Foundation
Ck 12: Biology: Genetic Linkage
[Free Registration/Login may be required to access all resource tools.] Discusses linked genes and why some characteristics are inherited together.
CK-12 Foundation
Ck 12: Biology: Genetic Variation
Discusses how sexual reproduction leads to genetic variation. [Free Registration/Login may be required to access all resource tools.]
Khan Academy
Khan Academy: Meiosis
In this tutorial students will learn how meiosis reduces chromosome number by half and become familiar with crossing over, meiosis I, meiosis II, and genetic variation.
CK-12 Foundation
Ck 12: Biology: Genetic Linkage
[Free Registration/Login may be required to access all resource tools.] Discusses linked genes and why some characteristics are inherited together.
PBS
How Cells Divide: Mitosis vs. Meiosis
This site provides both illustrations and text to compare and contrast the stages of mitosis with meiosis.
BioMan Biology
Snurfle Meiosis and Genetics 2: Diversity and Dihybrid Crosses
This biology game assesses understanding of "crossing over", "independent fertilization", and "random fertilization" in the study of genetics.