Nuclear DNA does not appear in free linear strands; it is highly condensed and wrapped around histones in order to fit inside of the nucleus and take part in the formation of chromosomes.

Small sections of the chromosome, called genes, code for the RNA and protein ... coiled and condensed around nuclear proteins called histones. Humans inherit one set of chromosomes from their ...

Chromosomes also play a role in regulating gene expression. The structure and packaging of chromatin can influence which genes are active or silenced in a particular cell type or developmental stage.

The nucleus of each human body cell contains 46 chromosomes. Each chromosome contains about 1000 genes. There is enough DNA in all the cells in a human body to stretch to the sun and back again ...

Chromosomes are thin strands of DNA (deoxyribonucleic acid). A gene is a short length of DNA found on a chromosome that codes for a particular characteristic or protein. Alleles are different ...

Within the rest of the genome are an estimated 70,000 genes. The single chromosome displayed here ... The DNA is wrapped around histones -- protein structures that are sometimes depicted as ...

Illustration of a gene within a DNA sequence, showing the organization from chromosome to DNA double helix ... Methylation can lead to gene silencing by preventing transcription factors from binding ...

However, there is some evidence that the Y chromosome is being phased out of the evolutionary pipeline, and could one day disappear altogether — potentially giving rise to a new sex gene in the ...

An article by UAB professor Joan-Ramon Daban analyzes in depth the physical problems associated with DNA packaging that have ...

New research from Jawaharlal Nehru Centre for Advanced Scientific Research, an autonomous institute of the Department of ...

Transposons, or "jumping genes"—DNA segments that can move from one part of the genome to another—are key to bacterial evolution and the development of antibiotic resistance. Cornell ...