An antibody, also known as an immunoglobulin, is a large Y-shaped protein produced by the immune system to neutralize pathogens such as bacteria and viruses.

The Wikipedia page for "Cell (biology)" provides an extensive overview of the fundamental unit of life - the cell.

Chromatin is the material that makes up the chromosomes in eukaryotic cells.

Chromatin immunoprecipitation (ChIP) is a type of immunoprecipitation experimental technique used to investigate the interaction between proteins and DNA in the cell.

DNA, also known as deoxyribonucleic acid, is a molecule that carries the genetic instructions used in the growth, development, functioning, and reproduction of all known living organisms and many viruses.

DNA sequencing is a process used to determine the precise order of nucleotides in a DNA molecule.

HeLa cells are a line of immortal human cells that have been widely used in scientific research since their discovery in 1951.

Massive parallel sequencing or massively parallel sequencing is any of several high-throughput approaches to DNA sequencing using the concept of massively parallel processing; it is also called next-generation sequencing (NGS) or second-generation sequencing.