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.
DNA Replication. INTRODUCTION. DNA replication is the process whereby an entire double-stranded DNA is copied to produce a second, identical DNA double helix. To understand the functions of the proteins responsible for DNA replication, including helicase, SSB protein, primase, the sliding clamp, DNA polymerase, Rnase H and DNA ligase. to understand why the leading strand is synthesized continuously and the lagging strand is synthesized discontinuously.