Chromosomes are physical structures made up of DNA and proteins that hold the entire human genetic code. Every human shares variations of the same 46 chromosomes.

Dec 20, 2009 - Bridget Coila

Genes are defined as basic units of heredity that direct the production of proteins. What are proteins and why are they important?

Mar 17, 2009 - Barbara Melville

Present in both males and females, the X chromosome is one of the two sex chromosomes in humans, spanning approximately 153 million base pairs.

Jan 9, 2010 - Barbara Melville

Chromosomal analysis may help signal the need for treatment for recurrent miscarriage.

Jun 6, 2008 - Kristen O'Hara

Chromosomes are tightly-coiled structures of DNA that carry the genetic codes humans need to grow and function.

Feb 8, 2010 - Barbara Melville

Down's syndrome (trisomy 21), Klinefelter's and Turner's syndromes, are among several diseases related to the failure of chromosomes to separate properly at meiosis.

Feb 3, 2010 - Donald Reinhardt

X-inactivation during chromosome development is vital in inheritance of X-linked diseases such as color-blindness and hemophilia and is why males are more often affected.

Jul 23, 2008 - Stephanie Cox

Most changes in DNA aren't harmful, however, some can have a detrimental effect on health and development.

Apr 19, 2009 - Barbara Melville

Chromosomes contain the codes of life. An organism's architecture and being, in all its finite details, are encoded by specific genes in the organism's chromosome(s).

Jan 10, 2010 - Donald Reinhardt

Genetics is the branch of science concerned with heredity in organisms, such as humans. What are genes, DNA, chromosomes and proteins - and where are they stored?

Nov 1, 2008 - Barbara Melville

DNA is the chemical that holds hereditary information, with its structure allowing for stability and accurate copying.

Sep 8, 2010 - Barbara Melville

Classical genetics is the oldest field within genetic science, and an essential foundation for several other disciplines.

May 24, 2009 - Barbara Melville

Separate from the nuclear chromosomes, mitochondrial DNA (mtDNA) spans about 16,500 base pairs, and is found in most eukaryotic organisms.

Dec 27, 2009 - Barbara Melville

Flowers come in many colors, shapes and sizes. In nature, a flower's role is to produce new seeds for new growth; sometimes a little help is required to do so.

Oct 30, 2008 - Sharon Falsetto

Sanctuary is the new web-based series comprising eight fifteen-minute webisodes from Damian Kindler, and starring Amanda Tapping of Stargate SG-1 and Stargate Atlantis.

Aug 14, 2007 - Colin Harvey

All organisms are made up of cells. There are single-celled and multi-celled organisms. Here is a brief overview of what a cell consists of, and some of its functions.

May 23, 2009 - Roberta Goli

Cells are magnificent, mysterious, and wondrous, yet when cancer strikes it is a story of cells gone wild. Cell cycles are important in health, cancer and treatments.

Jan 11, 2010 - Donald Reinhardt

The average adult has 206 bones in his or her body all of varying composition and types. The article will examine them, as well as how bones are made and kept healthy.

Mar 27, 2010 - Rolly Pelovangu

The cell nucleus may be the most important organelle in the cell for students to understand. It contains the DNA which controls nearly all cell activity inside the cell.

Sep 17, 2009 - Bridget Coila

The amount and location of peptidoglycan in the prokaryotic cell wall is what determines whether a bacterium is Gram-positive or Gram-negative.

Sep 30, 2007 - Tami Port