Heinrich Wilhelm Gottfried von Waldeyer-Hartz was a professor of anatomy and histology who coined the word "chromosome" in 1886. Waldeyer, noting the ability of thread-like structures in the nucleus to be stained by the dye fuchsin, named them "chromo"...

The bacterial or prokaryotic chromosome differs in many ways from that of the eukaryote. The term "eukaryote" comes from the Greek and means "true nucleus." Eukaryotic cells have a double membrane (the nuclear membrane)...

Chromosomes are microscopic units containing organized genetic information, located in the nuclei of diploid and haploid cells (e.g., human somatic and sex cells), and are also present in one-cell non-nucleated organisms (unicellular microorganisms)...

Chromosomes are microscopic units containing organized genetic information, eukaryotic chromosomes are located in the nuclei of diploid and haploid cells (e.g., human somatic and sex cells). Prokaryotic chromosomes are also present in one-cell...

A chromosome banding pattern is comprised of alternating light and dark stripes, or bands, that appear along its length after being stained with a dye. A unique banding pattern is used to identify each chromosome and to diagnose chromosomal...

Chromosomes are organized structures of DNA and proteins that are found in cells. Chromosomes contain a single continuous piece of DNA, which contains many genes, regulatory elements and other nucleotide sequences. Chromosomes also contain DNA-bound...

Nancy Kleckner, who grew up with molecular genetics, has answered some of the field's most important questions. Nancy Kleckner became smitten with genetic material as a high school student during the early 1960's, in the dawning of molecular genetic research. "DNA is intrinsically...

In two of the earliest major advances in the mammoth international effort to identify and decipher all of the estimated 100,000 human genes, two groups of researchers have taken apart and put back together the smallest human chromosomes: the Y chromosome and chromosome...

A rare genetic variation dramatically raises the risk of developing autism, a large study showed, opening new research targets for better understanding the disorder and for treating it.Research into the causes of autism has focused on genetic causes because so many families have multiple children...

A rare genetic variation dramatically raises the risk of developing autism, a large study showed, opening new research targets for better understanding the disorder and for treating it.Research into the causes of autism has focused on genetic causes because so many families have multiple children...