How is all of that DNA packaged so tightly into chromosomes and squeezed into a tiny nucleus? Histones are a family of small, positively charged proteins termed H1, H2A, H2B, H3, and H4 (Van Holde ...

How did humans evolve brains capable of complex language, civilization, and more? The answer could lie in exceptional DNA.

Thus, DNA strand identity is acquired during or ... Centromeres are composed of condensed and largely transcriptionally inactive chromosomal regions known as heterochromatin.

How did humans evolve brains capable of complex language, civilization, and more?       The answer could lie in exceptional DNA. Scientists at UC San Francisco found that parts of our chromosomes have ...

Gene editing techniques may eventually allow trisomy to be treated at the cellular level, according to an in vitro ...

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 ...

Decades ago, researchers showed that Down syndrome (also known as trisomy 21), was caused when individuals carried an extra ...

Regions of DNA that do not code for proteins may also be considered genes if they produce noncoding RNA with biological functions. Protein-coding versus noncoding genes When deciding the number of ...

Cancer cells have special adaptation mechanisms that allow them to proliferate despite changes in their genetic makeup.

Each human cell contains 23 pairs of chromosomes that carry DNA within their nucleus. The X and Y chromosomes, commonly referred to as the sex chromosomes, are one such pair. They determine the ...

"Using genome sequencing and fluorescently labeled DNA analyses, we reevaluated the child's genomic condition and found a ...

Blood screening to detect chromosomes offering less protection against age-related brain diseases may warn you of future health problems ...