Biochemistry, Genetics and Molecular Biology · Molecular Biology

Mitochondrial Function and Pathology

The first complex mitochondria could use oxygen and anaerobic metabolism

A study comparing mitochondrial proteins across the tree of life reconstructed the mitochondrion of the last eukaryotic common ancestor. The analysis suggests this early complex mitochondrion could support both oxygen-based and anaerobic metabolism.

2 weeks ago·51 views

Biology

Mouse chromosomes pair in three stages as reproductive cells form

Researchers tracked homologous mouse chromosomes as they paired during meiosis, the specialized cell division that produces reproductive cells. The chromosomes moved from widely separated positions to close alignment in three stages, with DNA breaks and recombination helping drive the transitions.

2 weeks ago·36 views