This informative resource features an overview of genetic material: DNA, chromosomes, genomes, homologous chromosomes, sister chromatids, and haploid/diploid.

In this science project, you will investigate the secrets of your distant past as revealed by your DNA. In order to obtain a sample for DNA analysis, you will scrape a soft swab inside your mouth to collect cheek cells. Based on the...

This video explains how DNA works and what it does, relating it to an instruction manual for building an organism. [4:29] Followed by a short quiz and a list of additional resources to explore.

Discussion in detail of the structure and function of the nucleus and ribosomes of a cell and how they work together in the production of proteins.

A complete, student-paced lesson on genetics and inheritance. Students work their way through illustrations and animated tutorials, and answer review questions along the way. There is a self-checking quiz at the end of the lesson.

Provides detailed explanation of DNA's structure and function. Includes illustrations.

This article from DNA from the beginning is loaded with goodies about genetics and DNA. Starting with Mendel all the way through the concept of DNA, you will see how life is given certain characteristics. Some animations and audio clips...

Eukaryotic cells have separate DNA from mitochondria and chloroplasts which indicates that they were once primitive cells on their own. This multimedia article includes animations, pictures, video, biographical information, and quiz...

The scientists and experiments that discovered that DNA is coiled into chromosomes are the topic of this article. Article includes animations, pictures, video, biographical information, and quiz questions that are accessed by clicking on...

At DNA from the Beginning, choose from classical genetics, molecules of genetics, genetic organization and control. Each concept is explained through animation, an image gallery, video interviews, biographies and links.

An explanation of genomes in regards to the amount of DNA compared to the number of chromosomes in different organisms. Additional discussion focuses on how the human genome is different from other species.

Given illustrations or partial DNA sequences, students will identify changes in DNA and the significance of these changes.

Find out about the chromosome karyotype and how that identifies a human as a human. [0:46]

In this lesson, students learn how DNA fits into chromosomes, how chromosomes relate to the human body, DNA replication, and protein synthesis.

The sequence of DNA that we inherit from our parents encodes directions for making our cells and giving us specific traits. Robin Ball explains how the secret lies in X chromosome inactivation.

See how telomeres act as protective "caps" on the tips of eukaryotic chromosomes. Also learn how telomerase extends telomeres.

Find out about mitochondrial and chloroplast DNA, and why its inheritance does not follow Mendelian patterns.

[Free Registration/Login may be required to access all resource tools.] During mitosis, the DNA in a nucleus must replicate. The copied DNA is divided into two genetically identical sets, so that after cytokinesis or cell division, each...

Online children's story that teaches about genes and how they direct how you react to things in your environment. Click on "next" at the bottom of the story to see how different people respond differently to harmful substances.

An interactive website that explores information about genes, mitosis, meiosis, cloning, and gene mutation. Concepts are discussed in detail with an interactive glossary and animations. At the end of each section quick questions are...

Read a passage about chemotherapeutic agents and answer the follow-up questions using the graphs provided.

At this site from PBS you can challenge yourself with this quiz to see if you know what is true and what is false in genetic and reproductive technology. You'll be surprised by some of the things that we are currently able to do with...

Get an in-depth look at the importance of DNA with this library of information on nucleic acid structure and function. Understand the structure and function of DNA by exploring topics in the chemical structure of DNA, organization of DNA...

Explains what chromosomes are, their structure, their functions within a cell, and the health impact of mutations in a gene sequence.