In addition, males have only one X chromosome, which makes them ... ribosomes of distinctive ‘Y flavour’. Hormones are powerful regulators of gene expression, and the levels for many of ...

X inactivation is the dosage compensation mechanism in mammals whereby during embryogenesis of females a single X-chromosome is genetically silenced. Although most genes are subject to X ...

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 ...

Your genes probably influence your hormone health more than you might expect. When we talk about hormonal health, a lot of focus tends to be placed on what we can do to take back control.

The cell's nucleus contains chromosomes. These are long threads of DNA, which are made up of many genes. Humans have around 25,000 genes across their 23 pairs of chromosomes.

A crucial event that determines whether the embryo will develop into a male or female occurs in the second half of week six. If the Y chromosome is present in the embryo's cells, a gene within the ...

Under gene influence ... However, there are cases where XX chromosomes are present, but during development, an excess of male ...