[Free Registration/Login may be required to access all resource tools.] Covers human autosomes and sex chromosomes.

Try these five self-checking quiz questions over chromosomes and human heredity. Click on the hints to see information about each questiion.

This lesson focuses on DNA including it's structure,components,and how it goes together to form genomes. It also provides to links to a video and a test.

Thomas Hunt Morgan will explain the research he did to determine that some traits are linked to the sex of an individual.

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...

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.

The Genetic Science Learning Center presents the world of heredity and traits including activities to better comprehend the science, clear explanations of aspects of heredity, and an interactive opportunity.

[Free Registration/Login may be required to access all resource tools.] Covers the structure and function of the nucleus. Students will learn about the structures associated with the nucleus like the nuclear envelop, the nucleolus,...

This site from the Human Genome Project for the Oak Ridge National Laboratory is the index page for chapters which include an introduction to genes, the mapping sequence of genes, and the impact and future of the Human Genome Project.

Get it all straight! The "Tour of the Basics" will help clarify the basic principals of genetics science from DNA, genes, chromosomes, proteins, heredity, and traits.

This site opens with an excellent introduction to Cytogenetics. Explore this site to learn about chromosomes, human karyotypes and more.

This interactive lab will enhance learning about DNA by virtually translating a gene.

[Free Registration/Login may be required to access all resource tools.] Some children are born with genetic defects that are not carried by a single gene. Instead, an error in a larger part of the chromosome or even in an entire...

This site explains how to determine the chances of inheriting certain traits from our parents. It gives mathematical examples and exercises.

The human genome serves as an instruction manual for life, with its own distinct letters, alphabet, sentences and chapters. Learn about the genome, nucleotides, DNA and genes with this interactive lesson.

Chromosomes are made from DNA. Genes are short sections of DNA. Genetically identical cells are produced by a type of cell division called mitosis. In sexual reproduction, a male gamete fuses with a female gamete to produce a new cell....

At this site from The Nobel Foundation you can read about Thomas Hunt Morgan, the scientist who won the Nobel Prize in Medicine "for his discoveries concerning the role played by the chromosome in heredity." This website is organized...

This self-checking, five question quiz over gene linkage and polyploidy can be used as a review of the concept.

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...

Key facts about Down Syndrome are available on this page--just roll over the icons. For more detailed information, use the left navigation to explore causes, diagnosis, treatment, and more.

A large collection of lesson and labs developed by high school biology teachers. Lesson plans cover the topics of Drosophila, population genetics, gene, molecular genetics, chromosomes, genetic disease, genetic counseling, and bioethics....

This site provides simple diagrams on all major topics in cell biology, genetics and biotechnology.

This Department of Energy site has up-to-date information and statistics on the progress of all JGI genome sequencing projects.

This link has many tools to help understand the revolutionary sciences and discoveries in genetics.