Tag Archives: Protein

Cell cycle and Cell division

By | August 31, 2021

All the living organisms, even the enormous ones, start their journey from a single cell. The process through which cells originate from existing living cells is called as cell division. Each cell have the ability to divide into two daughters cells (In mitosis), which again can grow and divide. This after many cycles (of growth… Read More »

Five and three domain classification of living organisms

By | August 24, 2021

Our Earth exhibits a large variety of living organisms, be it different kinds of plants, insects, sea creatures or other animals. In addition to these living forms, there are many organisms which we cannot see with our naked eye but are present around us. There are an estimated 1.5 – 1.7 million named species on… Read More »

Golgi Complex – The Protein Assembly Center of the Cell

By | July 26, 2021

The Golgi complex has a characteristic morphology – flattened, disklike, membranous cisternae with dilated rims, and associated tubules. The cisternae have a diameter of 0.5 to 1 micrometer, stacked in an ordered manner and a Golgi stack contains fewer than eight cisternae. There are several thousand distinct types of stacks depending on the cell type.… Read More »

What is Epigenetics?

By | June 29, 2021

Genes and behavior Even though identical twins come from the same genetic material, they turn out to be very different people looking alike. So different that one of the twins could get a genetic disorder at the age of 40 and the other could be the most fit person! Why is that so? Epigenetics: The… Read More »

Abnormal accumulation of proteins in neurodegenerative disorders

By | June 29, 2021

Alzheimer’s disease: A microtubule-binding protein called tau abnormally aggregates in the nerve cells, glia, and extracellular space in Alzheimer’s disease. These accumulated tau molecules are highly phosphorylated and are arranged into long, thin polymers that wind around one another to form helical filaments. The helical filaments form bundles in dendrites, axon, and cell bodies that… Read More »

How a single Hox gene (Ultrabithorax) can specify two different morphologies ?

By | April 20, 2021

Bithorax complex in Drosophila consists of three homeodomain encoding proteins : Ultrabithorax (Ubx), abdominal-A (abd-A) and Abdominal-B (Abd-B). The function of these bithorax genes is to pattern entire abdomen ( A1-A9 segments ) and a part of third thoracic segment ,which happens to be their normal expression domain in embryos. These Hox proteins are expressed… Read More »