Supriya N

Continuous Culture

The continuous culture is an open cultivation process, in which the cell growth is maintained in the continuous mode of operations. It works as an open cultivation system, in which the fresh nutrient medium is continuously added into the culture vessel rather than recycling and reuse of the nutrients or substrate. There is an inlet pump …

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Restriction Enzyme

A restriction enzyme is produced within the bacterial cell due to which it is also called “Restriction endonuclease”. In 1978, Werner Arber, Daniel Nathans, Hamilton O Smith won the Nobel Prize for the characterization and discovery of restriction enzyme during the study of Entero-bacteriophage. According to their study, the bacteria possess some restriction activity that …

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Transfer RNA

Transfer RNA is an RNA type that acts as the intermediary element, and plays a significant role in the loading and transferring amino acids to the site of protein synthesis, i.e. Ribosome. The t-RNA first decodes the information or the nucleotide sequences carried by the m-RNA. Therefore, t-RNA also plays a major role in translating …

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Difference Between Flagella and Pili

The difference between flagella and pili is due to the difference in the properties like structure, origination and functional role. Both are the two common types of surface appendages, which aid in locomotion and attachment of the organisms. Structure: The structure of flagellum appears whip-like, whereas pili appear thread or hair-like. Origination: The emergence of …

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Difference Between Amphibians and Reptiles

The difference between amphibians and reptiles is mainly due to the differences in the properties like the existence of dual life cycle, type of fertilization and skin type. Both amphibians and reptiles are the animals belonging to the phylum “Chordata” and considered as “Cold-blooded animals”. Life cycle: Amphibians have dual existence in their life cycle, …

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