Google+ post
Tim HuttonTim Hutton - 2014-01-28 17:49:12+0000 - Updated: 2014-01-28 17:49:12+0000
Originally shared by Dan PiponiIn many animal species an organism is usually female if it inherits an X chromosome from both parents. But within each cell, only one of those chromosomes is active. The other is disabled. As the two X chromosomes are generally different, that means neighbouring cells that seem otherwise identical may be expressing quite different genes.

Researchers at Johns Hopkins came up with an amazing way to colour a cell red or green according to whether or not its X chromosome came from the mother or father. For example the picture here is a slice of rat brain coloured in this way.
Shared with: Public
leonhard carl - 2014-01-30 04:40:42+0000
It is interesting that there is a obvious majority colored dots in both sides of the picture rather than randomly mixed。

This post was originally on Google+