Evolution

age-of-reptiles
Animals

Mesozoic Era – the Age of Reptiles.

September 8, 2018 Vinod Thakur 0

The Mesozoic Era spans from about 252 million years ago to about 66 million years ago that means it began roughly around the time of the end-Permian extinction. The amphibians were declining after a long period of supremacy among the animals and the reptiles were gradually replacing them. Many of them became very large fearsome and came to dominate the animal life practically everywhere and spread into all habitats. For this reason, the Mesozoic era is also called the Age of Reptiles or the Age of Dinosaurs. […]

Sexual-Reproduction-in-Protists
Microbes

Sexual Reproduction – An Important Innovation of the Early Protists.​

September 1, 2018 Vinod Thakur 0

Like the development of the flagellum for movement, sexual reproduction in protists involving meiosis, syngamy and zygote formation appears to have been a major evolutionary innovation by the primitive protists. This innovation has made a profound effect on more complex organisms. […]

protoplasm
Biology

What is the physical basis of life? 

June 9, 2018 Vinod Thakur 0

Protoplasm is the essence of life. We can refer to all the constituents of the cell collectively by the term Protoplasm. It shows all those activities that are characteristic of life. […]

DNA-versus-RNA
Biology

Why Nature Preferred DNA over RNA?

April 7, 2018 Vinod Thakur 2

We all know that DNA acts as a genetic material in most of the organisms on this planet earth. However, it is also clear that RNA also acts a genetic material, but only in some viruses. During the evolution, nature has considered DNA over RNA as genetic material, because DNA is more stable and more efficient than RNA. […]