X-inactivation is a process by which one of the two copies of the X chromosome present in female mammals is inactivated. The inactive X chromosome is silenced by its being packaged in such a way that it has a transcriptionally inactive structure called heterochromatin. As nearly all female mammals have two X chromosomes, X-inactivation prevents them from having twice as many X chromosome gene products as males, who only possess a single copy of the X chromosome. The choice of which X chromosome will be inactivated is random in placental mammals such as humans, but once an X chromosome is inactivated it will remain inactive throughout the lifetime of the cell and its descendants in the organism. Unlike the random X-inactivation in placental mammals, inactivation in marsupials applies exclusively to the paternally derived X chromosome.
The numerical value of x-inactivation in Chaldean Numerology is: 8
The numerical value of x-inactivation in Pythagorean Numerology is: 8
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"x-inactivation." Definitions.net. STANDS4 LLC, 2017. Web. 22 Nov. 2017. <http://www.definitions.net/definition/x-inactivation>.