chromosomes. A single (before replication) or double (after replication) strand of DNA with only a single centromere. Chromosomes contain the loci for alleles of different genes. The illustration below shows a chromosome with the parts labeled before (on the left) and after (on the right) replication.
Boo (dog) Boo is a Pomeranian that became an Internet sensation. Known for his short haircut, he has a popular Facebook page and is the subject of four photo books.[1] As of March 2016, Boo has over 17.5 million Likes on Facebook. Boo is owned by Irene Ahn, a Facebook employee.
noun. verb. A crowd says boo to the performance. A crowd says boo to the performance. The definition of boo is a way to show disapproval, or to scare or surprise someone. 1  An example of boo is to what a man said when the speaker said something he thought was shameful. 2  An example of boo is what a child says when they jump out from a hiding place.