A team of international researchers led by scientists at City of Hope provides the most thorough account yet of an elusive ...

Chloroplasts are plant cell organelles that convert light energy into relatively ... protection and senescence of chloroplasts are essential for maintaining a proper structure and function of ...

Modern humans have existed for over 200,000 years, and each new generation has begun with a single cell-dividing, changing shape and function, organizing into tissues, organs, and limbs.