Cephalopods may have the oldest sex chromosomes of any animal, according to a new discovery in the octopus genome.

2007; Lim et al., 2008; Mestiri et al., 2010; Xiong et al., 2011; Chester et al., 2012; Zhang et al., 2013). Chromosome instability results in a high frequency of aneuploidy characterized by changes ...

A study conducted by a research team at the Crick Institute identified important genes on the Y chromosome that regulate ...

People with shorter telomeres, the protective caps at the end of chromosomes, inside their white blood cells may be more likely to have strokes or develop dementia and late-life depression, ...

Chromosome abnormality is the condition in a cell or organism where the number of chromosomes or the structure of any chromosome differs from the normal karyotype. When the variant genotype is not ...

The X and Y chromosomes, commonly referred to as the sex chromosomes, are one such pair. They determine the biological sex, reproductive organs, and sexual characteristics that develop in a person.

Meiosis II resembles a mitotic division, except that the chromosome number has been reduced by half. Thus, the products of meiosis II are four haploid cells that contain a single copy of each ...

In particular, balanced translocations and inversions can neither be identified by microarrays since they do not alter chromosome copy numbers, nor by short-read sequencing because of the ...

Researchers have uncovered which genes on the Y chromosome regulate the development of sperm and impact fertility in male mice. This research could help us understand why some men don't produce enough ...

Researchers say study represents a resource that could also help to dissect Y-gene functions in other tissues.

Researchers at the Crick have uncovered which genes on the Y chromosome regulate the development of sperm and impact ...

Scientists know that the Y chromosome is essential for male fertility ... including looking at the number of offspring, number of sperm produced and the appearance and motility of the sperm.