Before a cell divides, its DNA is replicated so that each daughter cell inherits the same genetic information. The two copies, known as "sister chromatids," are held together by a ring-shaped protein ...

Complete lesson for Pearson Edexcel IAL Biology Topic 2 spec 2.10: DNA replication and Meselson–Stahl exam practice with real WBI11 questions. Save precious planning time with a complete, ...

At the scale of individual cells, the human body is constantly in motion. Every second, millions of cells divide, particularly in tissues such as the bone marrow, intestine and skin; neurons and heart ...

A new review in the Journal of Translational Medicine consolidates how the replication-initiation protein ORC1 safeguards ...

Cells have evolved careful checks to ensure DNA is copied only once, but how they switch on replication at the right moment has been the focus of a 30-year research question. New work from the Crick ...

A new review proposes that the DNA damage response drives PD-L1 upregulation in senescent cells, enabling immune evasion and ...

Human genomic DNA is wrapped around core histone proteins to form nucleosomes, the fundamental units of chromatin. During interphase, the period between cell divisions, DNA is replicated and the ...

While the central dogma of molecular biology outlines the linear flow of genetic information from DNA to RNA to proteins (black lines), glycomics introduces a “3rd code of life”—glycans—that operates ...