Females have one active X chromosome and one dormant X chromosome in each cell. But a study suggests that genes on the ...

Scientists discover that women's second X chromosome awakens later in life, expressing genes that protect the brain from ...

Researchers found that a gene on the Y chromosome influences how aortic valve stenosis progresses differently in males and ...

the function of all eukaryotic centromeres has been strongly conserved during evolution. This article focuses on the centromeres of mammalian chromosomes, particularly those in humans. Much of ...

The path from the initial discovery of sex chromosomes in 1891 to an understanding of their true function was paved by the diligent efforts of multiple scientists over the course of many years.

Down syndrome is a genetic disorder caused by an extra chromosome 21, affecting brain and body development. It leads to ...

The improper segregation of chromosomes during cell division leads to abnormalities that disrupt the proper functioning of ...

Greenland sharks are thought to have lifespans that can reach 400 years. Building upon previous work, University of Tokyo-led ...

As it turns out, the chromosome also has important functions beyond determining sex. According to a study published July 14 in Science, a lack of the Y chromosome in bone marrow cells causes heart ...

About 97 percent of the genome consists of sequences that don't code for proteins and have no known function. Within the rest of the genome are an estimated 70,000 genes. The single chromosome ...

It also contains telomerase reverse transcriptase (TERT), which uses TERC to synthesize and add telomeric DNA repeats to the ends of the chromosomes. In contrast to human somatic cells that are ...

Cytoplasmic flows guide chromosome positioning during embryogenesis. During the first stages of animal embryo development, the egg cell undergoes multiple divisions without growin ...