Ava DuVernay

If you walk into a room, and there is no one that's not like you there, whether it's a woman or a person of color, anyone that's different from you, you should be able to say this is a problem. We need allies in that room to say that video, this room, this company, these ideas, this film, this whatever, this is not right - this is not good enough.

The price of diamonds can vary greatly depending on size, cut, color, and other factors, including whether they have a history. But because of the rarity of blue boron diamonds, they often fetch more money than gems of similar quality.

What do cells do when they see a broken piece of DNA? Cells don't like such breaks. They'll do pretty much anything they can to fix things up. If a chromosome is broken, the cells will repair the break using an intact chromosome.