Hox gene is an example of a homeobox gene. The homeobox sequence codes for a 60 amino acid protein domain known as the homeodomain. The main role of homeodomain is to act as a switch that controls gene transcription.
(Histone modification hassome attributes of an epigenetic process, but the issue ofheritability has yet to be resolved.) This review concernsDNA methylation, focusing on the generation, inheri-tance, and biological significance of genomic methyl-ation patterns in the development of mammals.
Initiation of DNA replication 1. Origins of replication a. Specific sequence of nucleotides b. recognized by proteins that bind to DNA-initiator proteins 2. DNA helix unwinds-caused by helicase enzymes 3. bacteria have a single origin of replication B. Initiation of DNA replication 1. Origins of replication a.