With this problem set, students will learn about the solvent properties of water, pH, pKa, and buffering capacity. For each problem there is a tutorial feature that will explain the science behind the problem.

In this exercise, students review information about how blood types are inherited and complete several problem solving exercises applying their knowledge.

This exercise from The Biology Project is designed to introduce students to the events that occur in the cell cycle and the process of mitosis that divides the duplicated genetic material, creating two identical daughter cells. It includes tutorial readings and multiple choice questions to test students' knowledge.

The purpose of this problem set is to present an introduction to the use of the Restriction Fragment Length Polymorphism (RFLP) method to characterize human DNA samples as applied in paternity analysis and sex crimes investigations. For each problem there is a tutorial feature that will explain the science behind the problem.

The purpose of this problem set is to present an introduction to the use of DNA profile analysis to characterize human DNA samples as applied in paternity analysis and sex crimes investigations. For each problem there is a tutorial feature that will explain the science behind the problem.

With this problem set, students will become more familiar with some key principles about enzymes, catalysis, and energy that are central to a subsequent study of metabolic pathways. For each problem there is a tutorial feature that will explain the science behind the problem.

In this exercise, students complete a simulation of human karyotyping using digital images of chromosomes from actual human genetic studies. They will arrange chromosomes into a completed karyotype, and interpret their findings just as if they were working in a genetic analysis program at a hospital or clinic.

This exercise from The Biology Project is designed to help students understand the events that
occur in process of meiosis, which takes place to produce our gametes. It includes tutorial
readings and multiple choice questions to test students' knowledge.

With this problem set, students can assess their understanding of the monohybrid cross. For each problem there is a tutorial feature that will explain the science behind the problem.

In this virtual activity, students examine cells in the tip of an onion root (digitized photographs) to better understand mitosis and to determine the time spent in different phases of the cell cycle.

This exercise from The Biology Project introduces students to the kinds of cells that make up
all living systems, and to contrast cells with viruses. Students will be able to name the six
kingdoms, understand the differences between prokaryotes and eukaryotes, and be able to describe
the basic functions of the eukaryotic cell organelles. It includes tutorial readings and multiple choice questions to test students' knowledge.

With this problem set, students can assess their understanding of sex-linked inheritance. For each problem there is a tutorial feature that will explain the science behind the problem.