Polyploidy refers to the presence of three or more sets of chromosomes in a single organism. The phenomenon is present mostly in plants and rare in animals. A few of the animal species which exhibit polyploidy are earthworms, certain species of fishes, lizards, amphibians and some insects.
Negan is a fictional character in the comic book series The Walking Dead. He is the leader of a group of over 50 survivors in Washington, DC called the Saviors, who subjugate other communities in the area for resources in return for their protection against zombies.GN on their review of Negan's first appearance, the 100th issue said: The new villain already looks to be worthy addition to the book's cast. I didn't realize how much I missed having a truly awful antagonist like The Governor in this series until now.
Cogan syndrome is a rare autoimmune disease involving the eye and the inner ear. Cogan syndrome affects young adults, with 80% of patients between 14 yr and 47 yr. The disease appears to result from an autoimmune reaction directed against an unknown common autoantigen in the cornea and inner ear.