Mitochondrial DNA is a double stranded circular molecule, which is inherited from the mother in all multi-cellular organisms, though some recent evidence suggests that in rare instances mitochondria may also be inherited via a paternal route. Typically, a sperm carries mitochondria in its tail as an energy source for its long journey to the egg. When the sperm attaches to [...]
Are you looking for an essay on ‘Cytoskeleton’? Find paragraphs, long and short essays on ‘Cytoskeleton’ especially written for school and college students. Essay # 1. Introduction to Cytoskeleton: The existence of cytoskeleton in the structure of the protoplasm was proposed by Koltzoff in 1928. They are complex network of protein filaments extend throughout the cytoplasm and mesh of different [...]
After reading this article you will learn about the process of apoptosis which is characterised by chromatin condensation, with the help of suitable diagrams. Apoptosis, the programmed cell death is characterized by chromatin condensation and cell shrinkage in the early stage and then the nucleus and cytoplasm fragment, forming membrane-bound apoptotic bodies which can be engulfed by phagocytes. In contrast, [...]